Could you help me_______ when the plane will take off on the Internet ?—— I’m sorry , my computer doesn’t work.

____the book if you are free, and you will learn a lot about how to study English .

Can you work out the maths problem? —Sorry, I can ______ understand its meaning.

This school is ______ children ______ 8-15. [ ]

_____ do you know about table manners in Korea?[ ]