题目内容：

when are you going to return to USA?---------------
A.Until next week B.Not Until next week C.A few days ago为什么?

优质解答

答案：B.Not until next week因为：（C）是过去的,与问题中 going to 所代表未来的意思不符（A）由于问题已经表明你现在还未回到美国,所以如果要用until next week就只可以以完整句子,如I will stay here (there) un...