— Do you mind if I close the window?
— _______. We should let in more fresh air．
| A．Yes, go ahead． | B．Of course not |
| C．I would like to close it | D．I’d appreciate it if you didn’t |
A new study found ______ a teacher has anxiety about maths, ______ feeling can influence how his or her female students feel about math．
| A．when that; which | B．that when; that |
| C．that if; which | D．if that; that |
Good health is __________ most people take for granted--- until they lose it .
| A．anything | B．everything | C．nothing | D．something |
With the development of modern society, E-mail as well as telephones an important part in daily communication.
| A．have played | B．is playing | C．are playing | D．played |
—Your brother was brave enough to tell the truth in public.
---Yes, and he will never regret_________ that. I admire him so much.
| A．to do | B．to be doing | C．to have done | D．having done |
This is our contribution to ________ world of the 21st century, ________ world of independence and mutual understanding.
| A．the; / | B．/; a | C．a; the | D．the; a |