This experiment ought to ________ last weak .

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I don't think it's much use ________ to her .

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Once you ________ the bad habit, you cannot break it easily .

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What we need ________ more time .

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It ________ John and Mary that often ________ me with my English study .

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Two-thirds of the area ________ with trees .

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The number of the workers in our factory ________ in yours .

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A．is more than that

B．are more than those

C．is larger than that

D．are larger than those

The old ________ .

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Half of the plays put on recently ________ funny and interesting .

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Every means ________ tried since then .

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