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English Junior High

英検準2級 2020年1月23日実施の英検です。 どなたか答えを教えてください🙏💦

Akemi tried many different jobs before she became a teacher. Her parents are glad that ( ) she has found a job she enjoys doing. 1 in detail 2 in return 3 at the most 4 at last (12) A:Mom, where's Dad? He said he was coming to the baseball game with us. B:He had to work today, so he won't be coming ( 1 by chance 2 before long 3 after all 4 in control (13) The president said that his country was a good place to do business because ) natural resources such as natural gas and fresh water. 3 rich in it was ( 1 safe from 2 ashamed of 4 surprised by (14) A:Mom, is our plane flying directly from Tokyo to London? ) way of CIVC B:No, this time we are going from Tokyo to London ( Singapore. 1 by 9mno 9V69 3 for 2 on at (15) When Craig goes to his best friend's house, he always makes himself at ) and relaxes on the sofa. the time 1 the front 3 home 4 hand T2t Y: 0 mom aid one ) his breath while he was walking past the garbage near the ) 1on (16) Tom ( small river. He did not want to breathe in because it smelled so bad. 1 held 2 made 3 cut 4 stole Jennifer broke her leg last week, but she will still ( dodw ) a role in the school festival tomorrow. She is going to help sell cookies. brushoV lsi 2 show (17) ob:31/ tell 101 uo 4 play 1 25slg.sssi9 Xuls s 1ob10 of lil b'l : 8 (18) A:Beth, I thought you didn't like your job at Maxville Sales. Are you still sloo To sltods working there? B:Well, I'd like to quit. I (0oquoo ) to find a new job since last summer. 1 would be tryingon 2'vabot moit 2 u have been trying 3 to try 記d liw obro u04 (will try Siates W area': 10 00 (19) 4:Have you ever been to Europe, Ellen? ) France in the future. B:No, but I hope ( 2 3 Visiting 4 will visit 1 to visit visit (ot oime (20) A:Are you going to the party on Friday? B:Idon't know ( i gand )I can go or not. I have to ask my mom first. 1 what |2 that 3 whether 4 how

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TOEIC・English Undergraduate

「教科書のこの部分の要点を日本語で書け」 なんて書けばいいでしょうか😵‍💫😵‍💫

10-2 Expressing the Past: Necessity, Advisability, Expectation PRESENT:(a) Julia has to get a visa. (b) Julia has got to get a visa. (c) Julia must get a visa. Past necessity: had to In (d): had to needed to: Julia needed to get a visa. There is no other past form for must (when it rmeans neceasity) or have got to. PAST: (d) Julia had to get a visa. PRESENT:(e) I should study for the test. I want to Past advisability: pass it. (f) lought to study for the test. (g) T had better study for the test. should have ought to have + past participle In the past, should is more common than ought to. The past form of had better (had better have) is almost never used. PAST: Ifailed the test. (h) Ishould have studied for it. (i) lought to have studied for it. (i) I shouldn't have gone to the movies the night before. The meaning in (h) and (i): Studying was a good idea, but 1 didn't do it. I made a mistake. The meaning in (j): It was a bad idea to go to the movies. I made a mistake. Usual pronunciation of should have: “should-ev" or “should-e." lao was/were supposed to: unfulfilled expectation or obligation in the past PRESENT:(k) We are supposed to leave now. PAST: (1) We were supposed toleave last week. PRESENT:(m)The mail should be here. Should have + past participle: past expectation The speaker expected something to happen%; it may or may not have occurred, as in (n).. PAST: (n) The mail should have been here by now.

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Mathematics Senior High

2番のとき方を教えてください

| カ回目で終わるのは,(n-1)回目までに2回当たりくじ |(2) Past 「10本のくじの中に2本の当たりくじがある。当たりくじを3回引くまで繰 n23 とし, n回目で終わる確率を Pnとするとき 確率の問題では,Pnが負の値をとらないことと, Pnがnの累乗を含む式で表 (2) Paが最大となるnの値を求めるには, Pn+1 と P,の大小を比較すればよい。 50 反復試行の確率 P, の最大 上であ 307 例題 本39,45 n (2) Pnが最大となるnを求めよ。 ーズ 【類名古屋市大) ) Pを求めよ。 スペー 基本 45,47 OLUTION Pn+1 確率の大小比較 比 直強が CHART をとり,1との大小を比べる Pn 目osせい れ枚 2章 されることから,比 Pn Pn+1 5 をとり,1との大小を比べる とよい。 日 n _{(n+1)-1}{(n+1)-2} 2 n を引き 0歳の 10 10 式の (n-1)(n-2)(4 )(n23) 1京、 ち当さ てn-1)(n-2)/4\-3 時にバー )) 22/ 8 )n-3 2 P=ャC 10 42-3 …… Pのnの代わり にn+1とおいたもの。 の値 も増 Pa+1, P。 2 5 4n 5(n-2) Pati>1 とすると P 回5(n-2) すなわち 4n>5(n-2) 直が 少 3, 4.5点である確率 P0), P(2) PO, PO, P5)をそ 三 42 回情調,3,0,08 円E -5(n-2)>0 であるから, 不等号の向きは変わら る。 これを解くときれく10 Eない。出 -1とするとn=10 で上+<1 とすると n>10 P。 Pn P,の大きさを棒の高さ から、 興上るで表すと 最大 人立共) よって, 3Sn<9 のとき のとき のとき Pn<Pn+1, P=Pn+1, P> Pn+1 T5 n=10 減少 増加 11Sn 多の目は目回 のえに P<Pく <P,<Po=DPu, P.o= Pu> Pz2>…… t de n 34 9 1011 12 大にする自然変示を求めよ。 A-ド るき合の速求Aー 3A年齢 ふを下き合 したがって, Pnが最大となるnの値は n=10, 11 IE 間口に答えよ。ただし, n>3とする。 ★市めよ。 【類九州工大) をpk |独立な試行·反復試行の確率

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