._______ great achievements the future may have in store for China, it’s likely that many of them will be born in northwestern Beijing.

169. ____________! It’s time to go to school.

His arms were sunburnt because he in the sun all day

We are told ________ everywhere. It’s our duty to keep our school clean.

24．The first time I met David in the Central Park, both of us felt that we_____each other for ages