After the mew technique was introduced ,the factory produced ____in 2001 as the year before.
| A．as twice many machines | B．twice many as machines |
| C．as many machines twice | D．twice as many machines |
Generally speaking, the publishers will send you a specimen copy of their new books when ________.
| A．requested | B．requesting | C．having requested | D．to be requested |
Using bicycles ______ greatly to people’s physical fitness as well as easing traffic jams.
| A．substitutes | B．attributes | C．distributes | D．contributes |
I stopped and said hello to her when I saw her but she _____ me completely and walked on.
| A．ignored | B．greeted | C．honored | D．recognized |
It has been proved _______ violence on television has a bad effect on children.
| A．whether | B．because | C．what | D．that |
Mr Smith suggested the problem worth paying attention to ________ at the meeting.
| A．should discuss | B．was discussed | C．being discussed | D．be discussed |