That man in the corner of the restaurant ______ be Mr. Lee, for he went to Australia yesterday.
| A．can’t | B．need | C．must | D．won’t |
I wish I ___ able to tell him all about it last night.
| A．should be | B． were | C． had been | D． was |
—How about Christmas evening party?
—I should say it was success.
| A．a; a | B．the; a | C．a; 不填 | D．the; 不填 |
People who are infected with HIV are often looked down upon becausesocial _____ against the diseaseruns so deep.
| A．preference | B．conflict | C．prejudice | D．status |
In human, there is a possibility of____ such as fever and headachesif there is exposure to the virus.
| A．symptoms | B．circumstances | C．consequences | D．exhibitions |
Things like electronics, glass or other ____ objectsare often packed with an appropriate protective material to prevent damage.
| A．flexible | B．concrete | C．abnormal | D．fragile |