You ______ be hungry already — you had lunch only two hours ago!
| A．wouldn’t | B．can’t | C．mustn’t | D．needn’t |
28. ---- Who told you my email address?
---- I don’t remember clearly. It _______ Karen.
---- It _______ Karen. She doesn’t know my email address.
| A．may have been; can’t have been | B．must have been; mustn’t have been |
| C．may have been; must have been | D．must have been; mustn’t be |
27. We _______ connect with each other; she is _______ of an acquaintance than a friend.
| A．seldom; more | B．often; better | C．often; more | D．seldom; better |
26. Soldiers stood next to a police truck, looking at the crime scene _______ a woman was gunned down in a poor neighborhood of the border city of Iran October 18, 2009.
| A．that | B．which | C．where | D．why |
25. They suggested that the professor ______ just now ______ chairman of the meeting.
| A．referring to; was made | B．referring to; be made |
| C．referred to; be made | D．referred to; was made |
24. He is very _______ about his chance of winning a scholarship this semester.
| A．optional | B．obvious | C．optimistic | D．conventional |