If you really have to leave during the meeting, you’d better leave ____ the back door.
| A．for | B．by | C．across | D．out |
Sam has been appointed ________ manager of the engineering department to take _______ place of George.
| A．/; / |
| B．the; / |
| C．the; the |
| D．/; the |
The limits of a person’s intelligence, generally speaking, are fixed at birth, but ________ he reaches these limits will depend on his environment.
| A．where |
| B．whether |
| C．that |
| D．why |
________ struck me most in the movie was the father’s deep love for his son.
| A．That |
| B．It |
| C．What |
| D．Which |
________ I want to tell you is the deep love and respect I have for my parents.
| A．That |
| B．Which |
| C．Whether |
| D．What |
Many Europeans ________ the continent of Africa in the 19th century.
A.exploded
B.exposed
C.explored
expanded