Grandfather and grandmother are going to see us this weekend（对this weekend画线提问）定格如下
问题描述：
Grandfather and grandmother are going to see us this weekend（对this weekend画线提问）定格如下
______ _______ grandfather and grandmother ______ ______ see you?
答
应该填写
When are goingto
爷爷妈妈准备什么时候去看你们.
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