昨天经过讨论,我们才知道如何解决这个问题。(not. . .until. . . )
Chinese is (广泛地) used in the world these days.
What a fine day today! Let's go for a (野餐).
We will hold a party to say goodbye to our teachers next (星期三).
Every time I want to give up, my parents always (鼓励)me to keep trying.
The cinema was half (空的) because the movie was so boring.