题目内容
用所给动词的适当形式填空
She made sure of ________ (post) the letter.
答案:posting
解析:
解析:
|
解析: make sure of后跟doing sth.。 |
练习册系列答案
相关题目
题目内容
用所给动词的适当形式填空
She made sure of ________ (post) the letter.
|
解析: make sure of后跟doing sth.。 |