单选题：________in the queue for half an hour，Tom suddenly realized..

题目内容：
________in the queue for half an hour，Tom suddenly realized that he had left his wallet at home.
[ ] A．To wait
B．Have waited
C．Having waited
D．To have waited
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Lots of waste has been dumped into the river, which has led ..

Lots of waste has been dumped into the river, which has led to________. [ ]A. lots of fish having been killedB. kill lots of fishC. lots of fish being killedD. lots of fish to kill

分类：现在分词的完成式  题型：单选题
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The children all turned ____ the famous actress as she enter..

The children all turned ____ the famous actress as she entered the classroom. A．looked atB．to look at C．to looking atD．look at

分类：现在分词的完成式  题型：单选题
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One-room schoolhouses can still be found in _____ areas whe..

One-room schoolhouses can still be found in _____ areas where there are no other schools for many miles.A．disposedB．desertedC．isolatedD．abandoned

分类：现在分词的完成式  题型：单选题
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To answer correctly is more important than _____.A．that you..

To answer correctly is more important than _____.A．that you finish quicklyB．finishing quicklyC．to finish quicklyD．finish quickly

分类：现在分词的完成式  题型：单选题
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_____with what they had done, we felt we still had too much ..

_____with what they had done, we felt we still had too much to do.A．comparedB．comparingC．having comparedD．being compared

分类：现在分词的完成式  题型：单选题
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