This math problem is so hard that I can't ______ .Please give me some advice.A. look out it B. work it out C. give it out
Why not ______ your teacher for advice when you don’t know ______ the problems?
--- Didn’t your brother ________ go to school by bike? --- Yes, he did. But he ________ walking to school now.
You don’t know _____ I want to see you again. It’s a year since I last saw you.
With the help of the Internet, news can _______ every corner of the world.
Don’t forget to __________ your school things when you have finished your homework .