Some researchers believe that there is no doubt ______a cure for AIDS will be found.
—Shall I lock the lab now before I go home? —_____. I’ll check it myself later.
. ----Promise you’ll never wear this kind of dress! ----________. What if I will give a performance?
I think you should complain----______, of course, you are happy with the way things are.
. Only when Tom fully recovered ______ back to work.
. ----Has Tom already finished his new story? ----I have no idea. He ______ it last month.