题目列表(包括答案和解析)
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-My brother's never been late for work, ________?
-________.He is a hard-working man.
A.is he; Yes, he is
B.isn't he; No, he isn't
C.has he; Yes, he has
D.has he; No, he hasn't
Where were you?I had a hard time ________ you.
A.find
B.finding
C.to find
D.found
When Edison was a small boy, he always had a hard time ________ math.
learn
to learn
learning
learns
-My brother's never been late for work, ________?
-________.He is a hard-working man.
A.is he; Yes, he is
B.isn't he; No, he isn't
C.has he; Yes, he has
D.has he; No, he hasn't
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