—Mike’s parents have bought a 2-floor house with a swimming pool.— Oh, it________ be very expensive.
#76640
A
must
B
can
C
need
D
should
推荐题目
The factory ______ its waste into the river, but now it deals with the waste in a new way.
#77406
A
used to dump
B
is used to dump
C
used to dumping
D
is used to dumping
David, you _____play with the valuable bottle; you_______ break it.
#62983
A
won’t; can’t
B
mustn’t; may
C
shouldn’t; must
D
can’t; shouldn’t