The flowers _______often.
#44458
A
must be water
B
must be watered
C
must watered
D
must water
推荐题目
The Trojan War ______ by Helen and her beauty.
#44539
A
causes
B
is caused
C
caused
D
was caused
I don’t think teenagers should       go to bars.
#44749
A
allow to
B
be allowed to
C
not allow to
D
be allowed
This math problem        .
#44841
A
can be easily work
B
can be easily worked
C
can is easily worked
D
may easily worked