Question

Bob often _____ his homework after dinner. 
A. do   B. does    C. doing          

Answer 1

B

试题分析：句意：晚饭后鲍勃经常做作业。do one’s homework做作业。根据副词often可知此处用一般现在时，主语是Bob,第三人称单数形式，故谓语用故选B。