In my view, biology is ________ chemistry, but a little easier than mathematics.
| A．a subject so difficult as | B．as a difficult subject as |
| C．difficult as a subject as | D．as difficult a subject as |
–It’s too late to go to the football match now; ______,it’s being to rain.
| A．however | B．besides | C．on the contrary | D．because |
Tom killed the cat. I’ll ask him why _______.
| A．he did that | B．did he do that | C．he does that | D．he had done so |
He didn’t tell me ______ he would come to my party.
| A．if | B．where | C．what | D．that |
--- Smoking is bad for your health. ---Yes, I know. But I simply can’t ___.
| A．give it up | B．give it in | C．give it out | D．give it away |
The boy insisted ______ in a nearby school.
| A．to be taught | B．being taught | C．on being taught | D．on teaching |