ny ways , the education system in the US is not very different from ____in the UK.

You must _________ your son. — Oh, I see. He must make mistakes at school again.

－What is your math teacher like, Nick －She is very kind _________ she looks alittle serious.

Would you like to come to dinner today–I’d like to, ___ I’m too busy.

If Nancy __________ the exam, she will go to the USA for English study.