题目内容：

My grandma is cooking dinner with my grandpa.请问这个句子是正确的吗?is要改为are吗?

优质解答

My grandma is cooking dinner with my grandpa.这个句子正确.
is不需要改为are.因为My grandma 做主语,是单数.with my grandpa是介词短语,做伴随状语.