Englishteachersaresupposed　　　theirstudentsatestinclass,...

問題詳情：

English teachers are supposed　　　their students a test in class, even after class, 　　　better teaching results.

A. to give; ensuring                    B. giving; to ensure

C. to give; to ensure                   D. giving; ensuring

【回答】

C

知識點：非謂語動詞

題型：選擇題