In America. Chinese Kungfu is popular_____ young people. [ ]

Are these books ____.— No. they are not mine. They belong to ______.

“Thank you.” the man said _____a smile _____ his face. [ ]

Lin Kai, hand in your homework, please.—Oh, sorry. I ______ it at home this morning.

Tracy doesn’t know many people here. – ______, we have stayed here for only two days.