Question

Mr. Smith always takes _______ to do his work well. a、pain b、pains c、effort d、trouble

Answer 1

选择B，固定用法
take pains to do sth.
意思是you try hard to do it, because you think it is important to do it. （柯林斯词典释义）
若是effort这些词之类的，应该用名词复数。make/take efforts to do sth.

Answer 2

答案：C
解释：take effort to do sth 表示“努力做某事”。
翻译：斯密斯先生努力地把工作做好。

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Answer 3

选C
take effort to do sth 努力做某事
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Answer 4

(b) take pains to do sth 固定用法

Answer 5

c. take effort to do sth. 努力做某事