The two countries were ______ between 1989 and 1992.
My brother has been preparing carefully for the English exam, so that he can be sure of passing it at his first _______
I’m sorry you’ve been waiting so long, but it’ll still be some time ______ Smith gets back.
----How long will you stay in Peking University? ---- I don’t know. ________.
We ______ last night, but we went to the concert instead.
Born in 1976 in Taiwan, Liu Qian found himself _____ to a magic toy in a shop when he was seven years old.