—It’s necessary ____ our environment(环境). —I agree with you.
#50553
A
protect（保护）
B
protecting
C
to protect
D
protects
推荐题目
The famous actor planned ______her vacation in the countryside.
#48771
A
spending
B
to spend
C
for spending
D
spent
We’re going to practice_____ English as much as possible.
#50820
A
speak
B
to speak
C
speaking
D
speak about
The artist said that he hoped ___ drawing the picture soon.
#49437
A
his son to finish
B
to finish
C
finishing
D
his son will finish
Let's __________. We haven't got any fruit and vegetables.
#49269
A
went shopping
B
go shopping
C
goes shopping
D
going shopping