なぜdifficultの前にbe動詞は不要なのですか？

IL み企全 ンハグそテタキ 2 デてAAだCNG culture in Hme. 文 in ime |やがて, そのう7 12. The producer happened to hear her song on the street. UNIT18 不定詞ら 回 7.1.1 ⑫) ICs necessary to learn from mistakes. 1. ICs necessary (for you) to do your best. 2. Ifs important to think about the environment. 回 7.1.2 (②) Do you think it possible to persuade him? 1.Do you think it possible to build a house here? 2. 1 find it NE to get up early every dy なぜ 前いyと 回 7.2.1 It was a mistake for you to accept thatlthel] job. 1. It was a mistake for him to accept their offer 2.It wasn't[was not] a mistake for my grandmother to buy the computer 7.2.2 My motto is never to make the same mistake twice. 1. Her motto is not to give up. 2. Our goal is not to make a mistake. 固 7.9.1 ①) The economy seems to be gTOWing. 草間肌明暗科細拉介座ら aa

なぜ1番になるのかがわからないです、、、

問9 itisno[ 9 trying to persuade Mr, Johnson. ① use ② more ③ matter ④ way

この問題が分からないので教えてくださいm(_ _)m

He failed to persuade his girlfriend not to go tO NeW York alone. ④①might ②couldnt ③should ④wouldnt

aとbで同じ意味の文になるようにする問題です；；；； 教えていただきたいです(；；)

1 5 交の各引 出し の美文がほぼ同じ内容になるように. ( )に適当な語を書きなさい。ただし, 書き Ge) Yo:まが和与えられている場合はその文字で始まる昌信をんさい ⑥ s 5 Cannot cook as well as Susan an Ss( )toMayin cooking. し 32 計 G 9 Roughe maa ne qualifications, he got the job- mor( )so qualifcations, he got the job。 Gの 1 6 ie ea ee again2 ⑥ Wiarao yon( )p starting all over again2 8 (39) ⑯ The peauey oftme sunsetGouldnt be dcscribed. (⑥ The sunset was beautii( ) description. ey -wlrthec 40) (@) 』 persuaded him to get a drivers license during the spring (⑪) 】 talked him ( ) getting s driver's iccnse during the spring break.

4番の文の、 it のあとになんでbe動詞いらないんですか？？

この問題3つともわかりません。 わかる方、教えてください！

⑷が分からないので教えてください🙏💦

Do you think it possible to persuade him? この文で、なぜpossible は形容詞なのに前にbe動詞がつかないのでしょうか？

何故そうなるのか解説も教えて欲しいですㅜㅜ

教えてください！お願いします！