The teacher told us that light _______ faster than sound[ ]

Taobo is Asia’s largest retail（零售的） network platform, ______ people can buy and sell many kinds of things．

Do the Chinese like playing basketball — .

d I smoke here—I’m afraid smoking is not allowed here. If you _______, go to the smoking room, please.

The father as well as his three children _____ skating on the frozen river every Sunday afternoon in winter.