I think that studying in pairs of groups is necessary ________you want to learn from each other in class.
A. though
B. until
C. unless
D. if
查看答案
He is unlikely to find the school ________ he taught 50 years ago.
A. where
B. when
C. how
D. why
—It was ________information that we were very grateful for the man for his help.—You're right. He is a kind man in my heart.
A. so valuable
B. such an expensive
C. such valuable
D. so expensive an
It is an honor for me to ______ to speak here.
A. be invited
B. invite
C. being invited
D. have invited
It is a very comfortable _______.
A. hotel to live
B. hotel to live in
C. hotel for me to live
D. hotel to live with
微信支付 
支付宝支付