Get up early, ______ you will miss your train.
句意：早点起床，否则你会错过火车。
考查并列连词。or否则，and并且，but但是。根据前文是祈使句，可知构成固定句式“祈使句+or+陈述句”，or后接不好的结果，故选A。
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.
I find ____ necessary to learn about the customs of a country before you go there.
