单选题 Read it aloud ____________ the class can hear you.

单选题 We didn’t go home_________ we finished the work.

单选题 ____________ we got to the station, the train had left already.

单选题 She will sing a song __________ she is asked.

单选题 __________ you go, don’t forget your people.

单选题 _________she was very tired, she went on working.

单选题 She was_________ tired________she could not move an inch.

单选题 I’ll let you know _________he comes back.

单选题 It is about ten years __________ I met you last.