--- The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?
--- ____ my students have a try?
| A．May | B．Must | C．Will | D．Shall |
The boy’s new bike is _______ envy of his friends.
| A．a | B．the | C．/ | D．an |
I’d rather have a room of my own, however small it is, than _______ a room with someone else.
| A．to share | B．to have shared | C．share | D．sharing |
________ he had not hurt his leg, John wound have won the race.
| A．If | B．Since | C．Though | D．When |
E-mail, as well as telephones, ________ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．play |
Mark woke up one morning only to find both water and electricity _______ because he had not been able to pay the bills.
| A．cut out | B．cut down | C．cut off | D．cut short |