We must do everything we can _________ our earth clearer and safer.
#49701
A
made
B
to making
C
make
D
to make
推荐题目
—Did you have anyone ____________the meeting room?--Yes, I had the meeting room __________ .
#48826
A
to clean; clean
B
cleaned; cleaned
C
clean; cleaned
D
cleaned; clean
Jane is so shy that she is terrified of in front of a group.
#49049
A
spoke
B
speaking
C
speaks
D
speak
--- Did you finish _____ the book?---Yes, I did. Thanks ____ your dictionary, I had a better understanding of it.
#50102
A
reading, for
B
reading, to
C
to read, for
D
to read, to