“Did Jim come?” “I don’t know. He _______ while I was out.”
| A．might have come | B．might come |
| C．mush have come | D．should have come |
In order not to miss his flight, he ran ______ the street, jumped______ the fence and dashed into the waiting hall, ______ all about his own safety.
| A．across; over; forgetting | B．through; across; forgot |
| C．over; over; forgetting | D．across; over; forgot |
--- Could you tell me why I am constantly yawning this afternoon?
---Yawning ______ an indication that your body lacks oxygen and needs a rest.
| A．acts as | B．serves as | C．functions as | D．plays as |
China rank ______ in the 2008 Beijing Olympic Games and more and more countries _______ China as a friendly and powerful country.
| A．the first; rank | B．first; rank | C．the first; regard | D．first; suppose |
People in China don’t often kiss or hug each other goodbyes or hellos, which ______ a common _______ in some European countries.
| A．are; practice | B．is; exercise | C．are; exercise | D．is; practice |
The same gestures, signs and so on, in other words, body language, may express different ideas or meanings in different cultures, so don’t use them _______ you are definitely sure of what they mean so as to reduce misunderstanding ______ the smallest number.
| A．until; with | B．unless; to | C．until; by | D．unless; by |