The girl looked at me with a _____ expression. Maybe the problem was quite _____.
| A．puzzled; puzzling | B．puzzling; puzzled |
| C．puzzled; puzzled | D．puzzling; puzzling |
____ most efficient way to understand thousands of new words is to gain ____ good knowledge of basic word information.
| A．A; a. | B．The; / | C．A; / | D．The; the |
–– I’m sorry to have broken your pen. I wasn’t on purpose.
––_______. I’ve got another one.
| A．Go ahead. | B．Forget it. | C．Come on. | D．Take your time. |
All the photographs in this book, _______ stated otherwise, date from the 1970s.
| A．until | B．once | C．if | D．unless |
Since people are fond of humor, it is as welcome in conversation as _______ else.
| A．anything | B．something | C．anywhere | D．somewhere |
Everyone wants to live in a beautiful, comfortable and “livable” place, but not ______ know where it is.
| A．all | B．some | C．either | D．both |