Tom with his mother often goes to the zoo on Saturdays对吗?

问题描述:

Tom with his mother often goes to the zoo on Saturdays对吗?

It is right.
简析:Tom (with his mother) often goes to the zoo on Saturdays.
不看括号里的内容.主语Tom,谓语goes,宾语the zoo,时间状语 on Saturdays
已经是完整的句子了.
那再看括号里的内容,with his mother只是作介词短语,其实整句的真正主语是Tom.所 以谓语动词用三单形式.
你也可以将介词短语置于后面,如:Tom often goes to the zoo with his mother on Saturdays.这样你就很清楚为什么谓语动词用的goes了.