Electrolysis(电解)is the process ______ electric current is passed through a substance to cause a chemical charge.
| A．which | B．whose | C．to which | D．by which |
The way ______ was thought of by him ______ the experiment was similar to the way _____ you carried it out.
| A．that, doing, which | B．which, of doing, in which |
| C．what, to do, \ | D．it, of doing, that |
---- What ________ great fun it would be if we could light candles to celebrate his birthday!
---- Forget it! The teacher in charge of our dorm won’t be happy to see that.
| A．/; / | B．/; the | C．a; the | D．a; / |
------- Would you mind opening the door? It is too hot.
------- ________
| A．Not in the least. | B．Yes, I do. |
| C．No, I won’t. | D．Ok. |
The reasonhe didn’t go to school yesterday washe was ill．
| A．why；that | B．that；because |
| C．that；that | D．for which；what |
After living in Paris for fifty years，he returned to the small townhe was raised．
| A．which | B．that | C．where | D．when |