I waited ______ they finished talking.
句意：我一直等到他们谈完了。
考查连词辨析。until直到……为止；if如果；because因为。根据题意“我等待着____他们谈完了”，结合选项可知此处是说一直等到他们谈完，用until符合题意。故选A。
I waited ______ they finished talking.
Get up early, ______ you will miss your train.
Nobody can hear you ______you speak in a louder voice.
—I think I am the shyest in my class. What should I do?
—Be more active in class, ________ you can improve your ability to express yourself.
—Mary doesn’t like fish chicken
—Ben doesn’t like fish, he likes chicken very much.
The Chinese doctors went to Italy to help the patients________they knew it was dangerous.
_____ Jane_____ her brother is going to the movies this weekend. One of them has to stay at home to look after their sick mother.
— Work hard,____ your dream will come true.
—Well. 1 will do my best.
Little Mary says good night to her parents________ she goes to bed every day.
—Hello, Linda speaking. Who’s ____?
—Hello, this is Martin.
