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 |
. These wild flowers are so special I would do _______ I can to save them.
| A．whatever | B．that |
| C．which | D．whichever |
. When you answer questions in a job interview, please remember the golden rule： Always give the monkey exactly _______ he wants.
| A．what | B．which |
| C．when | D．that |
_______ we are doing has never been done before.
| A．That | B．What |
| C．Which | D．Whether |
_______ she couldn’t understand was ______ fewer and fewer students showed interest in her lessons.
| A．What; why | B．That; what |
| C．What; because | D．Why; that |
It is pretty well understood _______ controls the flow of carbon dioxide in and out the atmosphere today.
| A．that | B．when |
| C．what | D．how |