Good heavens!There you are!We ___ anxious about you,and we __ you back throughout the night.A.are,expect B.were,had expected C.have been,were exxpecting D.are,were expecting为什么选C?

Good heavens!There you are!We ___ anxious about you,and we __ you back throughout the night.A.are,expect B.were,had expected C.have been,were exxpecting D.are,were expecting为什么选C?
Good heavens!There you are!We ___ anxious about you,and we __ you back throughout the night.
A.are,expect B.were,had expected C.have been,were exxpecting D.are,were expecting为什么选C?

Good heavens!There you are!We ___ anxious about you,and we __ you back throughout the night.A.are,expect B.were,had expected C.have been,were exxpecting D.are,were expecting为什么选C?
从“There you are.”可已看出现在已经看到“we”要等的人,这时完成了对他的担心,所以用现在完成时,而用“were exxpecting ”表示过去一直.

前面说Have been anxious about you,说明我们知道现在都在担心你，但是后面用were expecting是因为back throughout the night,是单指昨天晚上而已。
LZ明白了吗？

我们一直都很担心你，我们等你一个晚上了（一个晚上都在等用进行时态）