I don"t know whether you happen ____ that he has been away for two months.[

题型：0107 期中题难度：来源：

I don"t know whether you happen ____ that he has been away for two months.[ ]
A. to be heard
B. to be hearing
C. to hear
D. to have heard

答案

举一反三

AIDS is said _____ the biggest health to people in that area over the past few years. [ ]
A. that is
B. to be
C. that it has been
D. to have been

题型：0127 期中题难度：| 查看答案

She seemed _____ the book before, but she said she had never.
A. to read
B. to have read
C. to be reading
D. reading

题型：吉林省期中题难度：| 查看答案

— I can"t recite the poem.
— Well, you are supposed _____ it many times yesterday evening. [ ]
A. to read
B. reading
C. to have read
D. having read

题型：0111 期末题难度：| 查看答案

Mary is said _____ in the supermarket for 5 years, but I don"t know why she resigned last month. [ ]
A. to have been working
B. work
C. to be working
D. to have worked

题型：0113 月考题难度：| 查看答案

China is known _____ greatly in terms of its cultural values over the past few years.
A. to change
B. having changed
C. changing
D. to have changed

题型：北京模拟题难度：| 查看答案