Question

3．對(duì)不起，我忘了告訴你他不在家了．
I'm sorry Iforgot to tell you that he was not at home．

Answer 1

分析 forgot to tell．

解答 答案：forgot to tell．這里表示我忘了告訴你他不在家了．是說過去的事情，用一般過去時(shí)，忘記去做某事用forgot to do sth，告訴tell，forget的過去式是forgot，故答案是forgot to tell．

點(diǎn)評(píng) 動(dòng)詞后加to do 和doing 的意思不一樣的有remember to do記住去做 remenber doing記得做過
regret to do遺憾的做 regret doing懊悔作了
forget to do忘記去做 forget doing忘記做過
try to do努力去做 try doing試試去做
help to do幫助做 can't help doing禁不住
need to do客觀需要 need doing需要被做
want to do主觀想要 want doing需要被做
stop to do停下去做（目的狀語）stop doing停止做
go on to do接著做 另一件事 go on doing繼續(xù)做