Fill in the blanks with the given words in their proper forms.

Now our earth is in ________. (dangerous)

Fill in the blanks with the given words in their proper forms.

The greenhouse lets the sunlight in while keeps much of the ________ from getting out. (warm)

Fill in the blanks with the given words in their proper forms.

In some places, people wear masks over their noses and mouths to protect themselves from the ________. (pollute)

Fill in the blanks with the given words in their proper forms.

________ the ozone layer, the sun would burn up the earth. (with)

Fill in the blanks with the given words in their proper forms.

We can't ________ the forests by burning and cutting down trees.

(destruction)

Fill in the blanks with the given words in their proper forms.

The air here is seriously ________ by the dirty smoke. (pollution)

Fill in the blanks with the given words in their proper forms.

The government plans to spend a ________ amount of money protecting our city's environment. (mass)

Both drivers were killed in the crash. Firemen removed two ________ bodies from the wrecked cars. (life)

用所给词的适当形式填空

She likes singing very much. She wants to be a _______ (music).

用所给词的适当形式填空

The ______ (library) is friendly and helpful.