—Some Chinese students find it difficult to understand native speakers when in London—Exactly,___they’ve learned a lot about grammar and known many words
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.
_____ computers are convenient to us in daily life, it may also cause other problems.
So involved with computers ____ that the leaders at the summer computer camps often had to force them to break for sports.
---- If he_____ , he ______ that food. ---- Luckily he was sent to the hospital immediately.