--Has Peter handed in his paper yet?---I’m not sure. He _______ on it last week.
If you the medicine, you better now.
The first prize goes to _______ makes the greatest contribution to the company.
______ my camera wasn’t working; there is no battery in it.
–Better get down to your work, Tom. --_________.
—Got your driving license? —No. I _____ too busy to have enough practice, so I didn’t take the driving test last week.