单项选择题:阅读下列各题,从题后所给的A、B、C、D四个选项中选择一个最佳答案。
I _____ to sing a song at the party last night.
A. am asked B. asked C. had asked. D. was asked
D
Liu Xiang ________by his coach to train regularly.
A.advised B.advises C.was advised D.be advised