C. effected；effect

　　D. affected；affect

　　18.I would appreciate________，to be frank，if goods could be delivered as soon as possible.

　　A. you　B. this

　　C. it

　　D. myself

　　19.I really appreciate ________ to relax with you on this nice island.

　　A. to have had time

　　B. having time

　　20.I appreciated ________ back and greeting that afternoon after our departure.

　　A. you to call

　　B. you call

　　C. your calling

　　D. you’re calling

　　C. to have time

　　D. to having time

　　21.We have every reason to believe that________2017 London Olympic Games will be ________ success.

　　A. /；aB. the；/

　　C. the；a

　　D. a；a

　　22.Although the wind has________，the rain remains steady，so you still need a raincoat.

　　A. turned up

　　B. gone back

　　C. died down

　　D. blown out

　　23.As the air is being polluted，many kinds of wild animals are________.

　　A. died

　　B. dying down

　　C. dying out

　　D. death

　　24.Scientists have many theories about how the universe ________ into being.

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