Not until some students failed in the exam _____ how much time they had wasted.
A. didn’t they realize B. did they realize
C. they didn’t realize D. they realize
Wherever she is sad, her parents can always______.
A. bring her up B. cheer her up
C. give her up D. come on
. Danny left word with my mother _____ he would call again in the afternoon.
A. who B. that C. as D. which
I’d try even if I may fail ______sit there worrying in time of trouble.
A. rather than B. other than C. more than D. less than
---- Do you mind if I smoke?
----________.
A. Why not? B. Yes, help yourself.
C. Go ahead. D. Yes, but you’d better not.
——Come on! I know you have ____gift for music.
------ Sorry. But I’m in _____ bad mood today.
A. / ; a B. the ; / C. a ; a D. the; a