----- Do you see why he hasn't turned up yet?----- Sorry, I don't know _______.
A.what the matter is B.how matters stood C.what is the matter D.how is the matter正确答案C
----- Do you see why he hasn't turned up yet?----- Sorry, I don't know _______.
A.what the matter is B.how matters stood C.what is the matter D.how is the matter正确答案C