问题
选择题
Jim usually ____ his homework in the evening, but he ____ books now.
A. does; reads B does; is reading C. is doing; reads
答案
答案：B
前句中usually表示频率，所以要用一般现在时，而now是现在进行时的标志，故选B
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Jim usually ____ his homework in the evening, but he ____ books now.
A. does; reads B does; is reading C. is doing; reads
答案：B
前句中usually表示频率，所以要用一般现在时，而now是现在进行时的标志，故选B