The world’s population is getting larger and larger, so scientists are trying to ______ new ways to solve the food shortage.
#58925
A
keep up with
B
come up with
C
make up with
D
catch up with
推荐题目
At school we take exercise for an hour every day to build us up.
#57630
A
cheer us up
B
make us happy
C
change us
D
make us stronger
---Why are you driving so fast? ---Because my flight is _______.
#60419
A
getting off
B
taking off
C
turning off
D
putting off
The scientist’s last words _________us that we should protect the environment around us.
#59625
A
recommended
B
remembered
C
replied
D
reminded