87．Sarah is watching TV．(改为否定句)

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86．Her sister wants to be a nurse．(对划线部分提问)

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85．Bob likes elephants because they look very strong．(对划线部分提问)

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84．It’s raining today．(对划线部分提问)

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83．Is Ruth from New York?(改为同义句)

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82．The baby is sleeping，so please ___________quiet．

81．Thank you for ___________CCTV’s Around The World show．

80．--Hi，Harry．Let’s ___________ a walk through the park on the Center Avenue after supper

--That sounds great．

79．--What’s your grandfather doing? –He ___________newspaper．

78．Tom’s brother usually ___________ him English．