—Mum, I can’t find my new pen.—Don’t worry. It ____________in one of your pockets.
The engineer will return from Macao ____ a few days.
–When will Mr. Black come to Beijing? –____ September 5.
It was a very long day for Jack. He didn’t get home from school ____ six o’clock.
China lies ____ the east of Asia and ____ the north of Australia.
There is an old bridge ____ the river.