These young trees must ______.
#41993
A
look after well
B
be look after well
C
be looked well
D
be looked after well
推荐题目
The teacher and writer as well as some students         something when we entered the room.
#63697
A
discussed
B
were discussing
C
have discussed
D
was discussing
There __________heavy rain tomorrow. 
#39297
A
is
B
have
C
will be
D
will have
The fishermen knew little about the island when they     there.
#42792
A
arrived
B
would arrive
C
arrive
D
have arrived
—________you _____your homework yet? —Yes, I ___it ten minutes ago.
#40221
A
Did, do, finished
B
Have, done, finished
C
Have, done, have finished
D
will, do, finish