1 . Yancheng SRT Line 1 ________ last year, now it makes people’s life easier and faster.

A．finished

B．was finished

C．is finished

D．finishes

2 . Last year, five Chinese teachers ________ to a school in the UK to teach the British students in Chinese styles for four weeks.

A．were sent

B．sent

C．have sent

D．have been sent

3 . 这位著名的歌手和他的学生被邀请参加这个活动。(as well as)(汉译英)

4 . The photos, which________ while I was studying in Beijing, remind me of many happy memories.

A．had taken

B．were taken

C．had been taken

D．took