题目内容

At least how many tests were carried out by the scientists referred to in this passage？

A. Three
B. Two
C. Only one
D. No one knows

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It ______ him ten years to write that novel.

A. took
B. spent
C. cost
D. costed

Tom told me that you were going to take a trip to America, ？

A. wouldn’t you
B. didn’t he
C. weren’t you
D. didn’t you

A.persuadedB.happenedC.treatedD.wounded

A. persuaded
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