The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.
| A．to be based on | B．to base on |
| C．which to base on | D．on which to base |
________ , the idea of having to work under a woman defeated him.
| A．Wanting the job very much |
| B．Although wanting the job badly |
| C．Though he wanted the job very much |
| D．He wanted the job badly |
________ everyone else wouldn’t go to the mountain area, he went without a second thought.
| A．As long as | B．While | C．Where | D．In spite of |
I failed in the final examination last term and only then ________ the importance of studies.
| A．I realized | B．I had realized |
| C．had I realized | D．did I realize |
When the elevator doors open, stand aside and let everyone out ________ you try to get in.
| A．unless | B．although | C．until | D．before |
________ an important decision more on emotion than on reason, you will regret it sooner or later.
| A．Based | B．Basing | C．Base | D．To base |