--Why does the lake smell terrible? ---Because large quantities of water _____

--Why does the lake smell terrible?    ---Because large quantities of water ______.

#85773

have polluted

is being polluted

has been polluted

have been polluted

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The factory used 65 percent of the raw materials, the rest of which _______ saved for other purpose.

#85870

are

was

were

Eating vegetables and fruits _________ a good habit.

#43694

are

is to be

will be

       some juice and milk in our fridge(冰箱).

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There have

There are

There is

There

It’s 8 o’clock. The students _________ an English class.

#43918

have

having

is having

are having

The family _____ fans of Jay Chow, whose songs all sound familiar to them.

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were

was

are

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