题目内容
用所给动词的适当形式填空
A thermos ________ (use) for ________ (keep) water hot.
答案:
解析:
解析:
|
is used, keeping |
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题目内容
用所给动词的适当形式填空
A thermos ________ (use) for ________ (keep) water hot.
|
is used, keeping |