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问题描述：
请注明选择答案的理由!
1.Our president will hold a special party at May Flower hotel tonight____ your honor.
A.with B.at C.in D.on
2.Not for a moment______the truth of your explanation about the event.
A.we have doubted B.did we doubt C.we had doubted D.doubted we
3.This is the microscope_____which we have had so much trouble.
A.at B.from C.of D.with
动词正确形式填空
4.Most students(take)____sixty credits by the time they graduate.
5.The cause of the accident may never(discover)_____in spite of the effort of the police.
答
1.C 固定搭配
2.B 倒装句
3.D have trouble with sth 在．．．上有麻烦
4．will have taken 将来完成时
5．have been discovered 虚拟语气