用现在完成时完成下列句子Joho_____never____(visit) the USAMr Li _____(rep

用现在完成时完成下列句子
Joho_____never____(visit) the USA
Mr Li _____(repair)over twenty cars since Monday
We _____(not see)each other for months
My parents_____(not come)back yet
Our Chinese teacher______(teach) us a lot about the history of China
Our city _____(change) a lot over the years
Xiao Li ______(not write) to his parents yet
____they_____(hand) in their homework?Not yet
We____(read) this book already