我们计划去北京，但还没决定何时去。We are planning to go to Beijing, but we haven’t decided _____

题型：不详难度：来源：

我们计划去北京，但还没决定何时去。
We are planning to go to Beijing, but we haven’t decided __________ __________ __________.

答案

when to go

解析

考查宾语从句简单句when to do的形式。