In the experiments, the scientists found that water __________ at 100℃.
| A．boils | B．boil |
| C．has boiled | D．had boiled |
______ to give up smoking, he threw away his ______ cigarettes.
| A．Determined; remained | B．Determining; remaining |
| C．Determined; remaining | D．Determining; remained |
--- Shall I give you a ride since you live so far away?
--- Thank you. ______.
| A．It couldn’t be better | B．Of course you can |
| C．If you like | D．If you are convenient |
In class, fewer of the students who are not ______ their studies sometimes ______ the dying robots, not listening attentively.
| A．accustomed to; are functioned as | B．addicted to; function as |
| C．sceptical about; are functioned | D．accurate in; function |
I am glad that you have managed to come. You ______ have brought wine. We’ve got plenty.
| A．wouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
Only when you ______ what you have learned to practice ______ say you have made it.
| A．adapt; you can | B．apply; can you | C．use; you can | D．adopt; can you |