11.(2005北京) ---Where is Frank now?---He _______ his bike in the yard.A.fixes up B.fixing up C.is fixing up D.fixed这个怎么选,为什么

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11.(2005北京) ---Where is Frank now?---He _______ his bike in the yard.A.fixes up B.fixing up C.is fixing up D.fixed这个怎么选,为什么

11.(2005北京) ---Where is Frank now?---He _______ his bike in the yard.A.fixes up B.fixing up C.is fixing up D.fixed这个怎么选,为什么
11.(2005北京) ---Where is Frank now?
---He _______ his bike in the yard.
A.fixes up B.fixing up C.is fixing up D.fixed
这个怎么选,为什么

11.(2005北京) ---Where is Frank now?---He _______ his bike in the yard.A.fixes up B.fixing up C.is fixing up D.fixed这个怎么选,为什么
选C
正在进行时.
他正在院子里修他的自行车.

C. is fixing up ------正在做。。。

C