【C4】A．whenB．althoughC．butD．while

【C4】A．andB．asC．butD．even

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【C4】A．AndB．EvenC．ButD．So

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Hardly had we got on the bus______it began to rain.A．whenB．sinceC．butD．before

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【C4】A．orB．soC．butD．and

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【C5】A．whenB．forC．butD．that

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【C4】A．ThenB．OrC．ButD．So

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【C2】A．howeverB．althoughC．andD．while

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