This kind of CD-ROM is very popular. Why not buy one before it________ ?
#59728
A
comes out
B
is come out
C
sells out
D
is sold out
推荐题目
You shouldn’t worry about ______breakfast then.
#63291
A
not have
B
not having
C
not to have
D
don’t have
____you go to school by bus?
#59322
A
Are
B
Is
C
Do
D
Can
 Excuse me. I _______ I was blocking(挡) your way.
#52568
A
didn't realize
B
don't realize
C
haven't realized
D
wasn't realizing