The monkey was seen _________off the tall tree.
#44572
A
jump
B
jumps
C
jumped
D
to jump
推荐题目
Food safety is important. Rules _____ to stop people from food pollution.
#44569
A
must make
B
must be made
C
mustn’t make
D
mustn’t be made
Trees ________ every year to make our city greener.
#44941
A
plant
B
are planted
C
were planted
D
will be planted
Personal computers ______ in 1976. It has changed the whole world.
#44711
A
have invented
B
were invented
C
is invented
D
invented
It’s said that ______of the water around the world___ polluted.
#44439
A
two third , has
B
two thirds, have
C
two third, are
D
two thirds, is
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