Mr Smith __________in London for a few years before he _____to China.

I don’t want to make friends with those people ______ think of themselves first when in trouble.

Good news.We will have a _______holiday. –I’ve heard of it.But it’s coming in_______.

Some students often drop litter carelessly in our school. What can we do?- We can _______ some signs to remind them not to do that again.

I’ m smy, I didn’ t mean to put you to so much trouble. —-__________