________ I got back, I found my mother cooking for me.
He _______ take exercise, but now he loves to play basketball.A. didn’t use toB. not used toC. didn’t used to
It’s impolite ________ loudly in public places.A. to speak B. speaking C. to speaking
—_______ is the hot water used for?— It is used to wash clothes.A.Who B. What C. Where
—Do you know the boy _______ is talking to Mr. Smith?—Yes, he's my brother.A. what B. which C. Who
Every student is supposed _______ the school uniform on weekdays.A. wear B. wearing C. to wear