Question

Deeply ________ his promise, he spared no effort to help the little girl to go back school．

[　　]

A．

attached to

B．

assigned to

C．

in addition to

D．

committed to

Answer 1

答案：D
解析：

句意为“他极其信守承诺，不遗余力地帮助那个小女孩重返校园”。其中spare no effort是“不遗余力”之意。