Mysisterpromises　　　abigdinnerforourmotheronherbirthday....

問題詳情：

My sister promises　　　a big dinner for our mother on her birthday.

A. cook                B. cooks              C. to cook            D. cooking

【回答】

C。考查固定搭配。promise to do sth. 承諾/決定做某事。故選C。

知識點：動詞和動詞短語

題型：選擇題