I failed in the fimal examination last term and only then the importance of studies.
| A．I realized | B．I had realized | C．had I realized | D．did I realized |
–– 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 |
______ in color, the garden looks dull in this late fall.
| A．Lack | B．Lacked | C．Lacking | D．To lack |