His sister left home in 1998, and _____ since.A. had not been heard ofB. has not

题型：高考真题难度：来源：

His sister left home in 1998, and _____ since.A. had not been heard of
B. has not been heard of
C. had not heard of
D. has not heard of

答案

举一反三

What he regrets is that more than a chance _____.
A. were given up
B. is given up
C. has been given up
D. have been given up

题型：0125 模拟题难度：| 查看答案

When and where to build the new factory _____ yet.
A. is not being decided
B. has not been decided
C. are not decided
D. have not decided

题型：0111 月考题难度：| 查看答案

With more forests destroyed, huge quantities of good earth _____ for the past few decades.
A. is washing away
B. has been washed away
C. are washed away
D. have been washed away

题型：0111 月考题难度：| 查看答案

The village which they lived in for many years ____ by Typhoon Morakot and now there is nothing to be seen.
A. was destroyed
B. has been destroyed
C. destroyed
D. had destroyed

题型：模拟题难度：| 查看答案

My friend, Tom, left New York in 1976 and _____ since then.
A. hadn"t been heard of
B. hasn"t been heard of
C. hasn"t heard of
D. hadn"t heard of

题型：0105 模拟题难度：| 查看答案