选择—How long ____you_____the computer?A have bought B have ke

C
两个词解释为“拥有”的时候,意思差不多,可以互换使用.
但是显然这里选则C比较符合语境
keep
保持,有,保留
例句与用法:
1.I'll only keep you a few minutes.
我只耽搁你几分钟.
2.That shop keeps everything you will need.
那商店经销所有你需要的东西.
3.You must keep your promise.
你必须遵守诺言.
4.Please keep me a place in the queue.
排队时请给我占个位置.
5.Keep straight on until you get to the church.
一直朝前走就走到教堂了.
6.I keep all her letters.
我保留著她全部的信.
7.He plans to keep a pub when he retires.
他打算退休后开酒馆.
8.You're an hour late,what kept you?
你晚了一小时,是什麽事给耽误了?
have
有
例句与用法:
1.I had a letter this morning.
我今天收到一封信.
2.Have you got a pencil?
你有铅笔吗?
3.We were having breakfast.
我们正在吃早餐.
4.I have an apartment in downtown Manhattan.
我在曼哈顿中心区有一套住房.
5.Have you got time to phone him?
你有时间给他打电话吗?

b

C have had 固定用法；How long have you had it ，你有这台电脑多久了

B和C都可以，A中buy是瞬间动词不行

b kept是短暂动词

C