—What do you usually do in the evening, Tom?—I usually ________ the newspapers t

—What do you usually do in the evening, Tom?—I usually ________ the newspapers to find something int

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—Will you go to Tom’s birthday party next week?—If I ________, I’ll go.

—Will you go to Tom’s birthday party next week?—If I ________, I’ll go.

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—Did you go to Betty’s birthday party?—No, I_______ at all.

—Did you go to Betty’s birthday party?—No, I_______ at all.

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记 S n 为等差数列{a n }的前 n 项和, 已知公差 d≠0, S 7 =35, 且 a 2 , a 5 , a 11 成等比数列.

记 S n 为等差数列{a n }的前 n 项和, 已知公差 d≠0, S 7 =35, 且 a 2 , a 5 , a 11 成等比数列.

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在△ABC 中, 内角 A, B, C 的对边分别为 a, b, c, 若 b=asinC, c=acosB, 则△ABC一定是()

在△ABC 中, 内角 A, B, C 的对边分别为 a, b, c, 若 b=asinC, c=acosB, 则△ABC一定是()

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