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
Who wants ____ the singing club?
#53986
A
to joins
B
join
C
to join
D
joining
Pandas would die ______ if people were allowed to hunt ______ they wished.
#60286
A
out; as many as
B
away; more than
C
off; as much as
D
out; less than
Granny is sleeping. You’d better __________.
#61633
A
not wake up her
B
not to wake up her
C
not wake her up
D
not to wake her up