问题描述：
英语选择题The idea is that the nation ______ an unmanned spacecraft to explore the pla
The idea is that the nation ______ an unmanned spacecraft to explore the planet first.
答案是send ,为什么要用虚拟语气?
The idea is that the nation ______ an unmanned spacecraft to explore the planet first.
答案是send ,为什么要用虚拟语气?
问题解答：
我来补答展开全文阅读