Question

【题目】My mother promised_________a piano for me

A. to buyB. buyC. buying

Answer 1

【答案】A

【解析】

句意：我妈妈答应给我买一架钢琴。A. to buy动词不定式；B. buy动词原形；C. buying分词或动名词。promise to do sth.承诺做某事。故答案为A。