3 Learning is one thing, and teaching is another.
※A is one thing, and B is another. 「AとBとは別物である」
4 Her eyes are blue.
1 They didn’t have anything to eat.
2 You will find it easy to read this English nove.
※この it は形式目的語で真の目的語は to不定詞句になります。
3 Please give me these big ones.
※ones = apples
4 Either will do. 「どちらでも結構です。」
5 Some of his classmates like him, but others dislike him.
※Some ~, and (but) others …. 「~する人もいるし…する人もいる」
6 Children came out of the bus one after another.
※one after another 「次々と」