Scientists study human brains work to make computers.
| A.when |
| B.how |
| C.that |
| D.whether |
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 |
Dress warmly, _____ you'll catch cold.
| A.on the contrary | B.or rather | C.or else | D.in no way |
This book gives a brief _____ of the history of the castle and details of the art collection in the main hall.
| A.outline | B.reference | C.article | D.outlook |