21. After the new technique was introduced, the factory produced ______ cars in 2009 as the year before.
| A．as twice many | B．twice as many | C．as many twice | D．twice many as |
-Each of the students, working hard at their lessons,to go to university.
-So do I．
| A．hope |
| B．hopes |
| C．hoping |
| D．hoped |
Not onlyinterested in football butbeginning to show an interest in it.
| A．the teacher himself is; all his students are |
| B．the teacher himself is;are all his students |
| C．is the teacher himself ; are all his students |
| D．is the teacher himself; all his students are |
As I have a meeting at four, ten minutes all at I can spare to talk with you.
| A．are |
| B．was |
| C．is |
| D．were |
Not the teacher but the students excited.
| A．is |
| B．has |
| C．are |
| D．have |
Mathematics the language of science.
| A．are |
| B．are going to be |
| C．is |
| D．is to be |