The flu is believed _____ by viruses that like to reproduce in the cells inside the human nose and throat.

The answer is connected with the main use ______ the body makes of food-to supply the energy for movement.[ ]

I won’t believe that the five-year-old boy can read magazines ______ I test him myself.

Please sit down.—________.

This sweater looks nice ________ Dick because he looksnice ________ blue.