Question

Li Ping with his mother ________ to go shopping.

1. A.
   want
2. B.
   wants
3. C.
   don't
4. D.
   to want

Answer 1

B
此题题眼为Li Ping with his mother，with是介词，所以此句的真正主语为Li Ping, with her mother是介词宾语，（而如果是Li Ping and his mother则表示“两个人”，是复数），所以此题应用动词的第三人称单数形式。