he often sweeps the floor .mary drew lots of pictures last y
he often sweeps the floor .mary drew lots of pictures last year .they are emptying the baskets.
liz was watching the garden.some will buy a present for her.he said he would give me a surprise.my grandpa has played the piano for a long time.the waitress has brought me my meal.someone must have stolen her money.we had to repair the car.改为被动语态好了追分