1,3,4,6,7,8,10,有現(xiàn)在完成時.其它沒有.
Have you answered the question?
Yes,I have,No,I haven't.
I haven't answered the question.
3.Has computer helped human beings a lot?
Yes,it has./No,it hasn't .
Computer has not helped human beings a lot.
4.Have the little boys drunk 200 ml of milk?
Yes,they have,No,they haven't.
The little boys have not drunk 200 ml of milk.
6.Have the students drawn many beautiful pictures?
Yes,they have,No,they haven't.
The students have not.drawn many beautiful pictures
8.Have you studied English for 10 years?
Yes,I have,No,I haven't.
I have not studied English for 10years.
10.Has your sister got five prizes?
Yes,she has,No,she hasn't.
Your siser has not got five prizes.