Pollution is a serious problem. Scientists have _______ some good ways to save it.
#55161
A
come up with
B
come on
C
come out
D
come up
推荐题目
"______ the friendship between our two people last forever!", and with this sincere hope, the president concluded his speech.
#53371
A
Could
B
May
C
Would
D
Must
Internet is very useful. It can __________our eyes to the outside.
#61898
A
put up
B
grow up
C
turn up
D
open up
We usually school at 7:30 in the morning and home after school at 4:30 in the afternoon.
#58932
A
get; get
B
get to; get
C
get; get to
D
get to; get to
