Understanding the cultural habits of another nation,especially ________containing as many different cultures as America,is a difficult thing.
It is hard to say what kind of person he is.Sometimes he is very friendly; at other times he ___ be very cold.
In my opinion, ___ matters is not one’s looks, but one’s inner thoughts.
Not far from the school there was a garden, _____ owner sat in it playing chess with his grandson every afternoon.
So involved with computers ____ that the leaders at the summer computer camps often had to force them to break for sports.
--Are you going somewhere during the winter vacation?--Yes, I’ve found a nice beach ________ I can enjoy swimming even in February.