. The magician picked several persons from the audience and asked them to help him with the performance.
| A．by accident | B．on occasion |
| C．at random | D．on an average |
—How are things going, Jenny?
—They have set out to deal with the present situation ______ they think deserves their immediately attention.
| A．what | B．where | C．when | D．which |
Little _____ about her own safety, though she was in great danger herself.
| A．did Mary care | B．Mary did care | C．Mary does care | D．does Mary care |
—The old store enjoys a good reputation in this area.
—Can’t agree more. There are very few. _____, complains about their service.
| A．if any | B．if ever | C．if so | D．if anything |
The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.
| A．to be caused | B．to have caused | C．being caused | D．causing |
Whether you believe it or not, it is ______that causes your illness.
| A．because of your overweight | B．you are so overweight |
| C．because you are overweight | D．your being overweight |