1.Things like that is happening everyday.(強(qiáng)調(diào)每天都在發(fā)生 ）
2.-- Excue me,look at the sign:No smoking.
--Sorry,I didn't see it.(指剛才沒看見)
3.I met Lily yesterday,but I forgot to ask her for her number.(forget to do表示忘記要干的事情,跟forget doing 表示忘記曾經(jīng)做過的事情,此處應(yīng)該用不定式)
4.Then I put the lemon juice into the salad and began to eat it.(begin 后跟不定式或動(dòng)名詞,這里也可以用eating)第一應(yīng)該用are happening。先行詞是things!