The mayor is happy to find that many trees _______ in our city last year. 
#44369
A
plant
B
were planted
C
planted
D
are planted
推荐题目
Sir, you should ________ at the red light, but you didn’t.
#44879
A
stop
B
have to stop
C
have stopped
D
not have stopped
The park _________by the cleaners every two days.
#44827
A
is swept
B
was swept
C
has swept
D
will sweep
—Hey, Jack. Waste paper ________ here.—Sorry, I won’t do that again.    
#44557
A
cannot throw
B
cannot be thrown
C
will not throw
D
will not be thrown