The population of China ________ 1.3 billion. And it is becoming _________.

You must drive _____next time, or there may be another accident. —Thanks. I will be much _____from now on.

We to the Children park if it is sunny this Sunday.

I have written to him because he phoned me shortly afterwards.

Studies show that people are more _____to suffer from back problems if they always sit before computer screens for long hours. [ ]