The country has already sent up three unmanned spacecraft,the most recent _____ ___ at the end of last March. A、has been launched B、having been launched C、being launched D、to be launched

注意：此页面搜索的是所有试题

题目内容（大学英语D252）

The country has already sent up three unmanned spacecraft,the most recent _____ ___ at the end of last March.

A、has been launched

B、having been launched

C、being launched

D、to be launched

参考答案

随机试卷

中国当代文学专题