Since his children have all grown up, he has nothing now.A、to worry aboutB、worr

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问题 Since his children have all grown up, he has nothing now.

选项 A、to worry about
B、worrying about
C、to be worried
D、worried

答案 A

解析 have nothing to do是固定的用法。

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【B1】[br]【B7】A、spendanythingB、costanythingC、paynothingD、needsomethingB同