Not until Mr. Smith came to China ______what kind of a country she is from.
A.Didn’t he know | B.Had he known |
C.Hadn’t he known | D.Did he know |
推荐套卷
Not until Mr. Smith came to China ______what kind of a country she is from.
A.Didn’t he know | B.Had he known |
C.Hadn’t he known | D.Did he know |