___How time flies!It's already twelve o'clock.___ Oh,really? I ______ it at all.
#39794
A
don't realize
B
didn't realize
C
haven't realized
D
hadn't realized
推荐题目
There is no doubt that students ________in their study if they       more praise from their teachers.
#36925
A
will make progress; will get
B
make progress; get
C
will make progress; get
D
make progress; will get
The students were all tired but ________ of them stopped ________.
#37504
A
no, to rest
B
none, to rest
C
no, resting
D
none, resting
 Don’t turn on the TV. Lucy has just come home from work and __________. 
#38273
A
sleeps
B
is sleeping
C
was sleeping
D
slept
What_____just now?
#41870
A
did he happen
B
did happen to him
C
happen to him
D
happened to him