He ____ writing the paper now. He hadn’t written a single word when I left him ten minutes ago.
| A．shouldn’t be | B．can’t have finished | C．can’t be | D．mustn’t have finished |
The hat borrowed from the drama company was so dirty that it required ________ thoroughly.
| A．washing | B．being washed | C．to wash | D．washed |
I felt very strange __________________.
| A．when the first time I skied | B．for the first time I skied |
| C．the first time when I skied | D．when I skied for the first time |
________ had been done, the working efficiency of the employees still remained low.
| A．Though | B．Despite the fact that |
| C．Despite | D．Despite what |
_______ as “a class of one ”, independent learning enabled you to study at your own pace.
| A．Describing | B．Described |
| C．To be described | D．Being described |
______ it be true that we will have to wait for 3 hours in a line to get into the French Pavilion in the Expo Site?
| A．Must | B．Shall | C．Can | D．Need |