__________we get on well with a number of people，we are usually friends with only a few．
| A．While | B．Since | C．If | D．As long as |
—Why, Jack! Someone seems to have called you over there.
—Yes? I _______ that.
| A．am not realizing | B．haven't realized | C．didn't realize | D．don't realize |
In order to improve English listening, _______.
| A．he bought a Walkman |
| B．his father bought him a Walkman |
| C．a Walkman was bought by him |
| D．a Walkman was offered to him |
Twenty students from one high school were _______ such an experience.
| A．enough lucky to share | B．to share enough lucky |
| C．enough to share lucky | D．lucky enough to share |
Sometimes I was thinking about _______ my own how I could make friends with a man who had little _______ common with me.
| A．with; in | B．in; in | C．on; on | D．on; in |
Walter offered us a lift when he was leaving the office, but our work _______, we refused the offer.
| A．not finishing | B．had not been finished | C．not having finished | D．not finished |