题目内容
He always tries his best ________ people in trouble.
[ ]
A.to help
B.helping
C.helps
D.help
答案:A
解析:
解析:
|
try one's best to do 固定结构。 |
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题目内容
He always tries his best ________ people in trouble.
[ ]
|
try one's best to do 固定结构。 |