Trees         in winter but in spring.
#44843
A
not can be planted
B
can be planted
C
can’t be planted
D
can plant
推荐题目
The students are ______ to hand in the exercises before class.
#44540
A
hoped  
B
suggested
C
agreed
D
expected
Don’t discuss the problems with your partner unless you ___ to do so.
#44804
A
ask
B
are asked
C
will ask
D
will be asked
Old people must __________.
#44763
A
speak to polite
B
be spoken politely
C
be spoken to politely
D
be spoken to polite