The man was       hurt in a car accident, and he could       remember anything.

----Why does your teacher _________ play basketball?-----Because he does not have much free time to play it.

Joe has been studying Chinese for three months．but he can ________ understand people when they speak Chinese．

Daniel goes to school by bus, but he walks ________ after school.

---How is Susan? ---Oh, she lives abroad, so I ______ ever see her.