1 feel that one of my main duties ______ a teacher is to help the students to become better learners.
| A．for | B．by | C．as | D．with |
Many experts hold the view teacher’s development is the key to better education lies.
| A．which; where | B．which; which |
| C．that; where | D．that; in which |
Mr. Smith has three children, the youngest of them music at college.
| A．studying | B．is studying |
| C．studies | D．studied |
Generally speaking, the window seat is usually the first one .
| A．to take | B．taken | C．to be taken | D．taking |
Clive moved to London, Edward to run the office in Manchester.
| A．left | B．being left |
| C．to leave | D．leaving |
Most countries of the world have records of the great natural catastrophes thatbefore.
| A．had occurred | B．have occurred |
| C．occurs | D．would occur |