The whole book ________ 12 units, _________ two mainly revisions
Peter was so excited ______ he received an invitation from his friend to visit Chongqing.
Nine in ten parents said there were significant differences in their approach to educating their children compared with ______ of their parents. A.those B one C.both D.that
The fact that people are afraid to go out at night is often a result of perceived (感知) danger ________actual danger.
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
The idea puzzled me so much that I stopped for a few seconds to try to _______.