_______ is the Yellow River,5,300 kilometers or 6,300 kilometers?—5,300 kilometers, I think .[ ]

____ are you?-I’m twelve.[ ]

The police are looking for a missing boy who is believed ______ a white pullover and blue jeans.

Have you heard of ______ news? The price of ______petrol(汽油)is rising again.

It will take me two weeks ________ the work.