The flu is believed _______ by viruses that like to reproduce in the cells inside the human
nose and throat.
| A．causing | B．being caused | C．to be caused | D．to have caused |
While watching television, __________.
| A．the doorbell rang |
| B．the doorbell rings |
| C．they heard the doorbell rings |
| D．they heard the doorbell ring |
It’s reported that global warming is heating the planet twice as quickly as _____ feared.
| A．extremely | B．previously |
| C．preciously | D．eventually |
The girl _______ in bed _______ to us that she had _______ the dictionary on the bookshelf.
| A．lay; lied; lay | B．lying; lied; laid |
| C．lying; lay; laid | D．lied; lied; laid |
It comes as no surprise that many parents walk along their young children ____ their safety.
| A．in search of | B．in place of |
| C．for fear of | D．for lack of |
_______, she is the sort of woman to spread sunshine to people through her smile
| A．Shy and cautious | B．Sensitive and thoughtful |
| C．Honest and confident . | D．Lighthearted and optimistic |