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Tonight I’ll do the assignment____ gave us last week.

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Did you ever find out______ penetrated your house last month?

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Those were the days_____ we played truant.

 Helen sounded______when I talked to her.

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The table____ legs are broken should be repaired.

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_____ is the pool? Seven feet.

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Smoking_____ the health of the smokers.

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Two-thirds of the money______ mine now.

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The student____ you just met is in one of my classes.

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He is a person____ friends trust him.

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That was the reason______ he didn’t marry her.

Jill has decided _____a car

I think Son Doong Cave is by far ____________ cave in Vietnam

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The knife____ we cut bread is very sharp.

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Seldom do_____ allowed to do that.

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Scientists are attempting to find out_____ there is life on other planets.

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I wish the rain_____ soon.

Choose the letter A, B, C or D to complete the sentence: What is the longest river __________ the world?

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_____ becoming extinct is of great concern to zoologists.

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It is essential that Mary_____ speak English.

The area is 50 meters _____ the sea level.