.It is uncertain whether the medicine will work on the this cold, _________?A. won't it B. isn't it C, will it D. is it
Ted, there’s a boy at front door who says he has news for you.
You’ve failed to do what you ______ to and I’m afraid the teacher will blame you.
I overslept this morning because my alarm clock ______.
Tony, stop playing with knife. You may get ______ .
When he came back from abroad, Joan told us about the cities and the people ______ he had visited.