Generally speaking, the publishers will send you a specimen copy of their new books when ________.
| A．requested | B．requesting | C．having requested | D．to be requested |
_____ creative looks like a good way to add years to your life.
| A．Being | B．Been | C．Having been | D．Be |
-- Are you free now? I have something interesting to tell you.
--- OK, _____ you make it short. You know, I am busy.
| A．now that | B．as soon as | C．every time | D．as long as |
My mobile phone is missing. Who _____ it?
| A．must have taken | B．should have taken |
| C．could have taken | D．need have taken |
The young man, _____ in heavy traffic on the way, got home an hour later than usual.
| A．catching | B．caught | C．having caught | D．to be caught |
Don’t run red lights, _____ you may get run over by a car.
| A．so | B．but | C．for | D．or |