Hisfatheroftenhelpshim

問題詳情：

 His father often helps him ________ his maths.

A. of                       B. to                             C. on                            D. with

【回答】

D  help sb. with sth.意爲“幫助某人做某事”。

知識點：介詞和介詞短語

題型：選擇題