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
― How do you feel when you watch the national flag go up?― It makes me ________ very proud.
#59602
A
felt
B
to feel
C
feels
D
feel
At the last moment, Tom decided to a new character to make the story seem more likely.
#53386
A
put up
B
put in
C
put on
D
put off
----The radio is too noisy. __________, please. -----All right. I’ll do it
#61064
A
Turn it off
B
Turn it on
C
Open it
D
Close it
Mary wants to learn to study in England so she often practices_________ English with her friends.
#62493
A
speaks
B
to speak
C
speaking
D
spoken