题文
----I’m sure Andrew will win the first prize in the final.
----I think so. He for it for months.
| A．is preparing |
| B．was preparing |
| C．had been preparing |
| D．has been preparing |
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----I’m sure Andrew will win the first prize in the final.
----I think so. He for it for months.
| A．is preparing |
| B．was preparing |
| C．had been preparing |
| D．has been preparing |
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