The workers in the Huashan Mountains have to       rubbish to keep the mountains clean.
#60114
A
turn up
B
pick up
C
mix up
D
give up
推荐题目
I __ a notebook. Please bring one to me.
#60937
A
need
B
know
C
spell
D
have
He isn’t that hard-working. So he has problems _______ English.
#57730
A
to learn
B
learns
C
learning
D
learned
The story__________me __________an experience that I once had.  
#55976
A
tells; of
B
reminds; to
C
reminds; of
D
thinks; of
 We need to __________a plan about what to do on Clean-up Day.
#59543
A
come up with
B
come over
C
come along
D
come out