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
— Does your mother often _______ to you?— Yes. But she always ________ the same words.
#52555
A
talk; say
B
talk; says
C
speak; tells
D
talk; speaks
It’s raining heavily, we decided ________ at home and watch TV .
#61606
A
stay
B
staying
C
to stay
D
stayed
Those eggs ______ , please throw them away.
#60436
A
smell good
B
are smelled bad
C
are smelled well
D
smell bad
—You looked unhappy. What’s wrong?—I ________ my PE exam again last week.
#60258
A
failed
B
beat
C
lost
D
won