1.The lesson has not started yet. 2. The teacher has already written on the board. 3. Joe and Tim have just come into the classroom. 4. Tony has not finished getting books ready. 5. Christine has already opened book. 6. Dave has dropped pen on the floor. 7. He has not picked it up yet.
2. The teacher has already written on the board.
3. Joe and Tim have just come into the classroom.
4. Tony has not finished getting books ready.
5. Christine has already opened book.
6. Dave has dropped pen on the floor.
7. He has not picked it up yet.