Years ago we didn’t know this, but recent science ______that people who don’t sleep well soon get ill.
| A．showed | B．has shown | C．will show | D．is showing |
The captain determined to be with the ship forever and never _____ to disappointment even when the ship sank.
| A．gave off | B．gave over | C．gave way | D．gave up |
At the age of twenty Steve left his hometown, _____ to return without making his mark.
| A．determining not | B．not determined | C．determined not | D．not determining |
Although John was the eldest in the family, he always let his sister _____ charge of the house.
| A．take | B．hold | C．make | D．get |
The island where these rare birdsnest has been declared a _____.
| A．observation | B．reservation | C．preservation | D．conservation |
Kate's ambition to become a nurse _____ from a desire to help others.
| A．prompted | B．promoted | C．programmed | D．proceeded |