The world’s population is getting larger and larger, so scientists are trying to _______ new ways to solve the food problem.
#56879
A
catch up with
B
keep up with
C
come up with
D
make up with
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-- Hello, this is Jack. Mary I speak to Tom? -- Sorry, he isn't in at the moment. If he back, I'II ask him to call you back.
#52708
A
come
B
comes
C
have come
D
came
I’m not sure whether I can hold a party in the open air, because it ______ the weather.
#61972
A
stands for
B
depends on
C
lives on
D
agrees with
Every Earth Day , We are made _____ signs to warn people to protect the nature .
#53633
A
design
B
designed
C
to design
D
Designing