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
推荐题目
 Do you need more people _______ you _______ the vegetables?
#58120
A
help, water
B
to help, water
C
help, watered
D
to help, watering
She will call you if she ____. 
#61858
A
goes to
B
go back
C
come back
D
comes back
He_______ his brother, but he______playing with his brother very much.
#53770
A
isn’t like, likes
B
isn’t like, looks like
C
dosen’t like, likes
D
isn’t look like, is like
We spend as much time as we can _______ English.
#54434
A
read
B
to read
C
reading
D
have read