作业帮1.I have just had my lunch.I _____ it at home.A.have had B.had had C.had D.have2.The British farmers knew that Nathan Hale was an American spy,because they ____ that he____some drawings of their defence works.A.found;made B.has found;made C.had found
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1.I have just had my lunch.I _____ it at home.A.have had B.had had C.had D.have2.The British farmers knew that Nathan Hale was an American spy,because they ____ that he____some drawings of their defence works.A.found;made B.has found;made C.had found
1.I have just had my lunch.I _____ it at home.
A.have had B.had had C.had D.have
2.The British farmers knew that Nathan Hale was an American spy,because they ____ that he____some drawings of their defence works.
A.found;made B.has found;made C.had found ;made D.found;had made
3.My brother_____ in the paper factory since he ____ college three years ago.
A.had worked;left B.has worked ;left C.had worked ;was leaving D.has worked ;was leaving
4.Our maths teacher ____ the post office when I ___ him.A.was passing ;saw B.passed;was seeing C.passed ;had seen D.was passing;was seeing
1.I have just had my lunch.I _____ it at home.A.have had B.had had C.had D.have2.The British farmers knew that Nathan Hale was an American spy,because they ____ that he____some drawings of their defence works.A.found;made B.has found;made C.had found
1.C 我已经吃过午餐了,在家吃的.用一般过去式.
2.D 过去的过去用一般完成时
3.B 现在完成时,从句用过去式
4.A 主句用ing+when+过去时
C过去吃的
D 过去发现，发现之前已经画了
B 从三年前开始到现在一直在工作，毕业是在三年前
A 我看见他是过去的事，他当时正在经过邮局
BDAA
C,D,B,A
1.C 过去的动作
2. D 整个句子的失态为过去式，make some drawings 的动作也是过去，但是在从句中，如果主句动词用过去时态，从句中的动作往前推一个时态。
3. B 典型的现在完成时态
4. A。
CDBA 1. 强调过去动作 2 发现是过去的 后面的内容是过去的过去3since接过去时 主句现在完成时 4看见是过去的 PAss的动作是在看见的同时正在进行的