1.She said she didn't take my ruler ,but I am sure she ( ).A.didB.isC.doesD.was2.He walked slowly ( ) his bad leg.A.as forB.at the end of C.because ofD.in front of3.The students should ( ) the teacher carefully.A.listenB.listen to C.be listenedD.be l

1.She said she didn't take my ruler ,but I am sure she ( ).A.didB.isC.doesD.was2.He walked slowly ( ) his bad leg.A.as forB.at the end of C.because ofD.in front of3.The students should ( ) the teacher carefully.A.listenB.listen to C.be listenedD.be l
1.She said she didn't take my ruler ,but I am sure she ( ).
A.did
B.is
C.does
D.was
2.He walked slowly ( ) his bad leg.
A.as for
B.at the end of
C.because of
D.in front of
3.The students should ( ) the teacher carefully.
A.listen
B.listen to
C.be listened
D.be listened to

1.She said she didn't take my ruler ,but I am sure she ( ).A.didB.isC.doesD.was2.He walked slowly ( ) his bad leg.A.as forB.at the end of C.because ofD.in front of3.The students should ( ) the teacher carefully.A.listenB.listen to C.be listenedD.be l
A
她说她没那我的尺,但我肯定她拿了.
这里要用过去式,用did不用was是因为这件事是她“做”的,而不是她“是”.
C
因果关系
B
学生听老师的话,是学生主动态,老师被动态,所以不用B,listen to 是固定搭配

A C B

1，A,意思是她说她没拿我的尺子，但我肯定是她拿了，前面用的didn't,所以要用did来与之对应。
2，C，意思是因为他受伤的腿，他走得很慢。A是“为了”的意思，B是“在。。。的结尾”，D是“在。。。前面‘，均不符合题目意思。
3，B，listen to 是固定搭配，意思是“听。。。”学生主动的听，不用被动语态。这句话的意思是同学们应该认真听老师讲课。...

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1，A,意思是她说她没拿我的尺子，但我肯定是她拿了，前面用的didn't,所以要用did来与之对应。
2，C，意思是因为他受伤的腿，他走得很慢。A是“为了”的意思，B是“在。。。的结尾”，D是“在。。。前面‘，均不符合题目意思。
3，B，listen to 是固定搭配，意思是“听。。。”学生主动的听，不用被动语态。这句话的意思是同学们应该认真听老师讲课。

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1.a
2.a
3.b

1, A 前后都得用过去式DID
2，C C的意思是因为，只有C才对前后意思
3，B should 后面只能用现在式，LISTEN是现在式，TO是加在动词后面的