We’ll do what we can _________ our environment.
#49518
A
protect
B
to protect
C
be protected
D
be protecting
推荐题目
Simon is very confident. He isn’t afraid of ______ in the whole school.
#49170
A
make a speech
B
making a speech
C
makes a speech
D
made a speech
You must eat all kinds of fruits and vegetables a balanced diet.
#49061
A
have
B
to have
C
having
D
had
I think it’s important Chinese well, because I am Chinese.
#49611
A
to learn
B
learn
C
learning
D
learned
---Why does Tommy look unhappy ? --- Because his teacher makes him _______ the classroom all by himself .
#50728
A
to clean
B
clean
C
cleans
D
cleaning
