If you don’t ________ , you’ll catch cold.

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They said their goods were ________ the best.

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---- What did you do last Sunday ?

---- Nothing ________ repairing my bike.

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The foods he ate were high ________ fat and sugar.

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After ________ , he felt very tired.

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A．two hour’s walks

B．two hours’ walk

C．two-hour walks

D．two-hours’ walk

They burned ________ all the old letters before the enemy soldiers came in.

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There is sugar ________ seven grammes.

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The teacher ________ not to touch anything.

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The fact ______ we’ll go to the Great Wall is known to all.

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He insisted ______ the work before Friday.

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