He got well-prepared for the job interview, for he couldn’t risk the good opportunity______.
| A．to lose | B．losing | C．to be lost | D．being lost |
I would like to buy some good English reference books, but _______ was available from the bookstore, where I only found some Chinese ones.
| A．nothing | B．no one | C．none | D．neither |
Everybody has _____ responsibility to save water, if future generations are to enjoy
____ similar standard of living to the one we enjoy now.
| A．the; / | B．a; a | C．/; the | D．a; the |
— Do you know when he ________ the trip to the USA?
— Perhaps next week, but I’m not sure.
| A．makes | B．made | C．has made | D．is making |
My sister is determined. ________ she has made up her mind, nothing can change it.
| A．Though | B．Once | C．Unless | D．Until |
Tom’s mother angrily told him ________ games on the Internet.
| A．not play | B．not playing | C．not to play | D．to not play |