1.Although I had learnt the news,I pretended ___ (not hear)
1个回答

1.not to have heard

虽然我已经得知那消息,我就当作我从来没有听说过的样子.

(动词不定式的完成时,动作有先有后,先“听说”后“装作”)

2.to be discussed

每位成员必须提交一个问题,将于明天会议上讨论.

(动词不定式的被动语态,且表示将来)