根据主语确定,
主语是第三人称单数用has,
主语是第一人称,第二人称,第三人称复数用have。
He has received extensive corrective surgery to his skull.
他的头骨做过大面积的矫形手术。
You have to pay your outstanding bill before joining the scheme.
在参加该项目之前必须结清余账。
额,英文的,has和have,是分主语的情况的,像he/she第三人称,基本用has,i/you 第一人称基本用have,举例,i have a dream 我有一个梦想
have和has有哪些不同的用法?
I 跟we用have
he 跟she用has