Question

Tom ________ to make us comfortable at his party, which was very kind of him.

A. spent nothing　　　　　　　　　　　　　　　　 B. spared no efforts

C. spare everything　　　　　　　　　　　　　　 D. brought everything out

 

Answer 1

答案：B
提示：

spare no efforts 固定短语，不遗余力。