____ twice, the postman refused to deliver our letters unless we changed our dog.
There is only 10 minutes _______. I must _______. ----- I’ve got to catch the train.
________, most teenagers now listen to rock music. However, John likes classical music better.
As nobody here knows what is wrong with the machine, we must send for an engineer to ______ the problem.
Mr. Brown thought it would be a good idea to have ______ from his workers to improve his plan.
The politician’s speech _______ the others that he was the man for the job.