In order to find the missing child，villagers ________ all they can over the past five hours.(2012·安徽)
| A．did | B．do |
| C．had done | D．have been doing |
Last year the number of students who graduated with a driving license reached 200,000, a(n) ________ of 40,000 per year.
| A．amount of | B．quantity |
| C．average | D．number |
____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 |