—We should do what we can ________ the endangered animals.—Yes, it’s our duty_________ them.
#48378
A
save; to protect
B
save; protect
C
to save; protect
D
to save; to protect
推荐题目
You can’t imagine what difficulty we had________home in the snowstorm.
#50145
A
walked
B
walking
C
to walk
D
walk
Don’t jump to a conclusion! Let’s _______ the problem first.
#49685
A
discussion
B
discussing
C
discuss
D
to discuss