— ______ do you go to the gym?— Twice a week
Photography can be ______excellent hobby for kids.
Tell Sally to call _____, please.
—Merry Christmas!—_______.
The policeman caught the thief ______ has stolen Mr. Li’s computer.
—Miss Gao, I am feeling bored. Would you mind my ________ here?—You had better not, for smoking is forbidden in public now.