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

I heard one of his ________ paintings was sold at a very high price.-Yes, a wealthy man bought it for 100,000 dollars；anyway，he is worldfamous.[ ]

Could you please ___________ my pet dog when I amon vacation—-No problem.

iew, London’s not as expensive in price as Tokyo but Tokyo is ______intraffic

Do you often play ______ basketball with your friends —No, I don’t like sports． I often play ______ piano in my free time．