请为懂英语的,
1./WhenIwasatyourage,Ialready___work.
A.mustB.havetoC.hadtoD.must
(选C为什么)
2./I'llneverforget_____youforthefirsttime.
A.meetB.metC.tomeetD.meeting
(选D)
3./HeteacheshimselfEnglish____theradio.
A.atB.inC.withD.on
(选D)
4./Therearealotofpatientsatthe____waitingforthedoctor.
A.doctorB.doctorsC.doctor’sD.doctors'
(选C)
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