Question

【题目】I can't tell you what she said.I've promised ____it a secret.

A. keepB. to keep

C. keeping

Answer 1

【答案】B

【解析】

句意：我不能告诉你她说的话，我答应了要保守秘密。

keep保持，动词原形；to keep动词不定式；keeping动名词或现在分词形式。句中谓语动词为promise，意为“承诺，答应”，常用于句型promise to do sth.答应去做某事，故应选B。