Pollution is a serious problem. Scientists have _____ some good ways to save it.
#54132
A
come up with
B
come on
C
come out
D
come up
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You ________ do the work now. You can do it tomorrow.
#55431
A
needn’t to
B
don't need
C
don’t need to
D
need to not
— Dear, you should some money for your birthday.— OK. I won’t let a coin go to waste.
#54202
A
save
B
spend
C
waste
D
make
At last, Lucy make the baby ____ and the baby began to laugh.
#54152
A
stop crying
B
to stop crying
C
stop to cry
D
to stop to cry