题目内容
It was raining heavily, but they kept on ________.
[ ]
A.to work
B.having a rest
C.to have a rest
D.working
答案:
解析:
解析:
|
keep on doing 句中有but表转折,故选D。 |
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题目内容
It was raining heavily, but they kept on ________.
[ ]
|
keep on doing 句中有but表转折,故选D。 |