I hear Sam has gone to Qingdao for a holiday.—Oh, how nice! Do you know when he________?
Not only ________ give people relaxation and pleasure, but ________ increase their knowledge of any kind.
I was born ___ April 20, 1985 ____ the north ____ China. [ ]
I lost my way. I wonder ________ I can turn in the dark.
Mary is going ____ December and she’s staying ____ a week. [ ]