21.I _____ to take a good holiday this year, but I wasn’t able to get away.

　　A hope

　　B have hoped

　　C had hoped

　　D hoped

　　参考答案：C

　　22.John and I ______ friends for eight years. We first went to know each other at a Christmas party. But we ______ each other a couple of times before that.

　　A had been; have seen

　　B have been; have seen

　　C had been; had seen

　　D have been; had seen

　　参考答案：D

　　23.The new suspension bridge _____ by the end of last month.

　　A has been designed

　　B had been designed

　　C was designed

　　D would be designed

　　参考答案：B

　　24. John was given the same suitcase his father and grandfather ____ with them to school.

　　A took

　　B had taken

　　C were taking

　　D would take

　　参考答案：B

　　25.When Jack arrived he learned Mary ____ for almost an hour.

　　A had gone

　　B had set off

　　C had left

　　D had been away

　　参考答案：D

　　26.Experiments of this kind ____ in both the U.S. and Europe well before the World War.

　　A have conducted

　　B have been conducted

　　C had conducted

　　D had been conducted

　　参考答案：D

　　27.The pen I ____ I ____ is on my desk, right under my nose.

　　A think; lost

　　B thought; had lost

　　C think; had lost

　　D thought; have lost

　　参考答案：B

　　28.She stared at the painting, wondering where she ______ it.

　　A saw

　　B has seen

　　C sees

　　D had seen

　　参考答案：D

　　29.They became friends again that day. Until then, they ____ to each other for nearly two years.

　　A didn’t speak

　　B hadn’t spoken

　　C haven’t spoken

　　D haven’t been speaking

　　参考答案：B

　　30.Helen ___ her key in the office so she had to wait until her husband ___ home.

　　A has left; comes

　　B left; had come

　　C had left; came

　　D had left;would come

　　参考答案：C