题目内容
The professor explained this theory so clearly that this phenomenon was easy enough ________.
| A.for us to work out | B.working out |
| C.for working out | D.to working out |
A
解析
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题目内容
The professor explained this theory so clearly that this phenomenon was easy enough ________.
| A.for us to work out | B.working out |
| C.for working out | D.to working out |
A
解析