The Chinese University of Hong Kong, founded in 1963, ______ 50 in 2013.
We have various summer camps for your holidays. You can choose ____ based on your own interests.
The two girls are so alike that strangers find ________ difficult to tell one from the other.
(2012陕西卷)No matter where he is, he makes _____a rule to go for a walk before breakfast. A. him B this C. that D. it
Sophia waited for a reply, but ____ came.
Studying Wendy's menu, I found that many of the items are similar to______ of McDonald's.