— Work hard,____ your dream will come true.
—Well. 1 will do my best.
句意：——努力奋斗，然后你的梦想就会实现。——好的，我会尽力的。努力的结果是梦想实现，祈使句+and + 陈述句；固定句型，表示如果做到了祈使句表示的事情，就会有后面句子表示的结果；so，因此，表因果，but，但是，表转折，or，或者，表选择，与题目不符，不选，故答案选C。
— 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.
—Much personal information is stolen when people buy things on the Internet.
—Terrible! _____ must be done to keep the Internet safety.
—Where would you like to go this Mid-Autumn Festival?
—I’d like to go ____.
—It’s sunny outside. Why not go out and have a look?
—There ____ is here. I just want to have a rest.
There is ___ juice in the fridge. I must go to the supermarket at once to buy some.
____ of my time is spent on learning. So I have made much progress in my study.
Most students are playing on the playground and there are still ____ students staying in the classroom．
