—You seem familiar with Mr. John?
—Sure, we ______ together for three years in the 1990s.
| A．have worked | B．had worked |
| C．are working | D．worked |
He is a shy man,___he is not afraid of anything or anyone.
| A．so | B．but | C．or | D．as |
I wasn't able to hide my eagerness when I ________, "What do you wish me to do now?"
| A．ask | B．have asked | C．am asking | D．asked |
This video camera can prevent the picture from jumping as the photographer ______.
| A．moved | B．is moving |
| C．will move | D．has moved |
Today’s approach to advertising is very different from ______ of 20 years ago.
| A．that | B．it | C．some | D．any |
Mother often tells us never to put off ______ we can do today till tomorrow.
| A．where | B．when |
| C．what | D．which |