题目内容

Mr White _______his racing bicycle by himself yesterday, but I’m not sure  whether it is ready
A．repairedB．had repaired
C．was repairingD．would repair
C

试题分析：考查时态：句意：怀特先生昨天自己修自行车，但是我不确定现在是不是修好了。因为时间是yesterday，排除BD项，又因为but I’m not sure  whether it is ready这句话，排除A。因为一般过去时，表示动作已经结束了，就不会说不知道有没有准备好，用过去进行时表示过去正在做的动作。选C。
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