-- Do you often get online? Yes I a lot time on it. It’s a good way to kill time.A

问题补充：

-- Do you often get online?

-- Yes, I a lot time on it. It’s a good way to kill time.

A cost

B spend

C pay

D take

答案：

解析：表示某人在某物上花费时间，主语为人，通常用spend或pay，与on搭配的通常为spend，故本题选B。