Young trees should ________ every day.
#45076
A
water
B
watered
C
be watering
D
be watered
推荐题目
Usually John ________ to school in his father’s beautiful car.
#45016
A
has taken
B
is taking
C
is taken
D
has been taken
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