Do you know ____________ the population of China is?—Yes, it has the __________ population in the world, about 1.3 billion.

.—Sally, where is your homework?—Sorry, Ms Zhao. I left it at home. I will_______it to school tomorrow.

Much to our _________, Sam wasn’t _________ at the _________ news.

This isn’t your bag. It’s ____. Yours is at home.

is it now? — It’s 8:00. [ ]