Chủ đề:
Unit 15 : Going outCâu hỏi:
III/ Put the verbs in the past simple or the present perfect ( 4 ms)
1/ He (send) ........................................................ twelve messages so far.
2/ The nurse (work) ................................in the village for many years.
3/ I ( wait ) ............................ for almost an hour for him this morning.
4/ The letter has arrived for Mary, but she (not read )............................... it yet