问题

rove the quality of our products, weask ____ has used them for suggestions
A:/; a
B:the;/
C:the; a
D:/;/
B:the;/
C:the; a
D:/;/
正确答案是:
同类题型
I felt bad _________ I talked about my unlucky experience to the public
Tang is absent today.—- _________ He is never late for work.
I wonder ________ you’ll water this kind of flower—Once a week
Weare watching TV ______ we caught sight of a friend of ours .
I____ asleep because it took me a long time to realize that the telephone was ringing.