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—Do you want tea or coffee?

—________. I really don’t mind.

[　　]

Many ________ trees should be planted on the mountains.

[　　]

Have you seen the sign“________”?

[　　]

It’s a good idea ________ morning exercises every day.

[　　]

Pepper can be used ________ our food more delicious.

[　　]

We should keep our classroom ________.

[　　]

The key ________ for locking the classroom door.

[　　]

The teacher told us the PRC ________ on October 1, 1949.

[　　]

Why did you make the baby ________?

[　　]

I’ve never heard of the dinosaurs ________ feather.

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