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He is 1.60 meters tall, and she is 1.65 meters tall. （改為同義句）

   She isn’t _________ _________ __________ he.

 At first, I found that communicating with foreigners was quite difficult. (改為同義句)

   At first, I found communicating with foreigners ________ ________.

Jim lives on the fifth floor. I live on the fifth floor, too. (合并為一句)

   Jim and I live _______ _______ ________ floor.

Scientists say that there are _________( life ) on the moon.

It is _________( danger )to play football in the street.

The air keeps ________( move ) all the time though you can’t see it.

We must clean the ________( lay )of dust on the furniture every day.

 The Greenhouse Effect badly ______( affection) the balance of nature and causes the ______(destroy) of our earth.

Careless drivers are ________( threaten) to the lives of pedestrians.

 The ________( cover) of ozone around the earth protects us from the sun.