Question

-________ the young men come from Shanghai?

-Yes, they ________．

1. A.
   Do; do
2. B.
   Can; do
3. C.
   Do; are
4. D.
   Are; are

Answer 1

A
谓语动词是行为动词，一般疑问句前应用助动词do引导，回答也用助动词do．