—We are worried about Tom. Why hasn’t he come back?—Don’t worry. He ______ in a traffic jam.
— You look puzzled at the news. — Yes. I just can’t imagine _____ he could have done such a thing.
—How are things going, Jenny? —They have set out to deal with the present situation ______ they think deserves their immediately attention.
Little _____ about her own safety, though she was in great danger herself.
—The old store enjoys a good reputation in this area. —Can’t agree more. There are very few. _____, complains about their service.
The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.