请为懂英语的,1./WhenIwasatyourage,Ialreadywork.A.mustB.havetoC.hadtoD.must(选C为什么)2./I'llneverforgetyouforthefirsttime.A.meetB.metC.tomeetD.meeting(选D)3./HeteacheshimselfEnglishtheradio.A.atB.in

Question

请为懂英语的,
1./When I was at your age ,I already ___work.
A.must B.have to C.had to D.must
(选C为什么)
2./I'll never forget _____you for the first time.
A.meet B.met C.to meet D.meeting
(选D)
3./He teaches himself English____the radio.
A.at B.in C.with D.on
（选D)
4./There are a lot of patients at the ____waiting for the doctor.
A.doctor B.doctors C.doctor’s D.doctors'
（选C）

Answer 1

1、根据句意,这个人工作不是主动的,是迫于生存所必须的,所以用have to而不是must；第二,用过去时,所以选c
2、forget doing sth 忘记做过某事
forget to do sth 忘记要做某事
3、on the radio 固定用法
4、at the doctor's 在候诊室 固定用法 同类用法有很多 都是在称呼后面加's,表示在……地方