Составьте предложения в present perfect.
1) lesson/not/start/yet
2)teacher/already/write/on the board
3)Joe and Tim/just/come/into the classroom
4)Tony/not/finished/getting/books ready
5)Christine/already/open/book
6)Dave/drop/pen/on the floor
7) he/not/pick it up/yet
Answers & Comments
the teacher has already written a few tasks on the board
joe and tim have just come into the classroom
tony has not finished getting books ready
dave has dropped a pen on the floor. he has not picked it up yet