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
There__________ great changes in our city in the past 10 years.
#54176
A
were
B
had
C
have been
D
have had
Fire is dangerous and we must __________ children away _________ it.
#55018
A
stop; from
B
keep; from
C
prevent; to
D
keep; to
I ______ go to bed until my father _______ back.
#63380
A
Will; comes
B
won’t ; comes
C
will; will come
D
won’t; will come