The teacher said he needed _____ boys besides his students _____ the classroom.
| A．20 other; clean | B．20 more; to clean |
| C．20 more; cleaning | D．another 20; clean |
__________ makes the book so extraordinary is the creative imagination of the writer.
| A．That | B．What |
| C．Who | D．Which |
—Have you paid? What's my share of the bill? —__________. It wasn't very much.
| A．Don't worry about it | B．It's my share |
| C．None of your business | D．It's up to you |
She showed the visitors around the museum, the construction ________ had taken more than three years.
| A．for which | B．with which |
| C．of which | D．to which |
Time, ________ correctly, is money in the bank.
| A．to use | B．used |
| C．using | D．use |
Women are ________ an important role in social life.
| A．taken | B．making |
| C．playing | D．using |