问题补充:
单选题
Not only should you get used ______ under difficult conditions but you also you pay more attention ______ your work well.A.to work, to doB.to working, to doingC.to work, to doingD.to working, to do
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B解析因为 get used to与pay attention to 这两个结构中的to均为介词,不是不定式符号,故后接动词时要用动名词,不能动词原形。类似地,以下各结构中的 to 也是介词,不是不定式符号,后接动词时也应用动名词,而不是动词原形