Its population is almost ________ of the world’s population.

The man in prison insisted that he _______ nothing wrong and _______ set free.

When H7N9 bird flu first appeared, people didn’t know_______ doctors could cure it.

The city of Nanchong has grown so fast that it’s at leastwhat it used to be

You shouldn’t have gone there alone last night .—–But I ______Philip went there together with me