After the new technique was introduced, the factory produced ______ tractors in 1998 as the year before.
| A．as twice many | B．as many twice |
| C．twice as many | D．twice many as |
____today, he would get there by Friday.
| A．Would he leave | B．Was he leaving |
| C．Were he to leave | D．If he leave |
---- Is everyone here?
----Not yet. Look, there _______ the rest of our guests.
| A．come | B．comes |
| C．is coming | D．are coming |
These tax laws, which are intended for domestic companies, do not ________ to foreign companies.
| A．contribute | B．apply | C．lead | D．summit |
Many people agree that __________ knowledge of English is a must in _________international trade today.
| A．a; / | B．the; the |
| C．a; an | D．/; the |
----Are you going to Tom’s birthday party?
---- __________. I might have to work.
| A．It depends | B．Thank you |
| C．Sounds great | D．Don’t mention it |