On the 40th Earth Day, Dr Wang gave us a talk on the importance of _____

On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth.

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practicing

preventing

polluting

protecting

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 There_____ a hospital in my hometown fifty years ago.

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had

was used to

were

used to be

If it________ , I will go to the Central Park with my son this weekend.

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isn’t rain

won’t rain

doesn’t rain

didn’t rain

This kind of on-line game _______ a group of teenagers in China.

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is made of

is made by

is made from

is made in

We have ______ all the shoes in your size

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sold off

sold up

sold away

sold out

I’m sleepy. I prefer         at home to going out for a walk.

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sleeping

to sleep

slept

sleep

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