When I passed the park I saw the grass______by some workers with lawn movers

16 Summer Olympic Games will be held in Rio de Janeiro, Brazil, which becomes the first city in South America _________ Olympics.

When do you usually take a shower? —I take a shower __________ the morning.

Can you believe I had to pay 30 dollars for a haircut?——You should try the barber’s _______I goIt’s only 15

Must I wash the clothes now— No， you _______. You _______ clean the room first.