Question

________Mary ________ her homework in the evening？

1. A.
   Do，do
2. B.
   Does，does
3. C.
   Do，does
4. D.
   Does，do

Answer 1

D
解析：主语Mary为第三人称单数，因此助动词用does，而疑问句已有助动词does，句中动词用原型do。