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
Mrs. White _____ her wallet now, but she can’t ______ it.
#55886
A
is looking for; find
B
finds; look for
C
is looking for; finds
D
looks for; finding
Mr Zhang encourages the poor students ______ study.
#55543
A
not giving up
B
to not give up
C
not to giving up
D
not to give up