I’d appreciate ______ if you would like to teach me how to use the new computer.
| A．that | B．you | C．it | D．this |
---Who will address the students from our school this evening?
--- ______ to be the speaker.
| A．I am supposed | B．I will suppose |
| C．I have supposed | D．I was supposing |
Tommy had had a three-mile drive north _____ he could turn and head back south.
| A．while | B．as | C．before | D．after |
The scientists all agreed that rules of physics, ______ we are all familiar, govern the world.
| A．to which | B．on which | C．which | D．with which |
To keep safe _______ an earthquake, you should remain at a spot in your room where nothing may fall on you.
| A．in search of | B．in advance of | C．in terms of | D．in case of |
—I will come to attend your lecture at 10:00 tomorrow.
—I’m sorry, by then my lecture will have ended and I _____ in my office.
| A．am working | B．will work | C．will be working | D．will have worked |