55.He is said ( ) two trips to China in the last two years.

55.He is said ( ) two trips to China in the last two years.

题目
55.He is said ( ) two trips to China in the last two years.
( to be making / to make / to have made / to have been making)
这题应该选什么,说出正确答案的理由和其他三个选项为什么不选的理由,
答案
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