——Do you know what your problem is?
—Yes. I always overwork to ________ for lost time.
| A．sit up | B．keep up |
| C．make up | D．hold up |
________ his being late again，he lost his job and had to stay at home.
| A．Owe to | B．As result of | C．In case of | D．Because of |
I found all ________ in the play funny and interesting.
| A．directors | B．the director | C．characters | D．the characters |
I don't want to get ________ in some lengthy argument about who is to blame.
| A．included | B．involved | C．concerned | D．affected |
For a moment Tom was ________ how to reply to the question.
| A．no idea | B．not knowing | C．puzzling | D．at a loss |
—How did your mother react ________ the news?
—She reacted by getting very angry.
| A．on | B．of | C．with | D．to |