Coming into the room, I found them ______ at the table, _____ chess.
| A．seated; playing | B．seating; playing | C．seat; play | D．seated; played |
— The terrible accident is under investigation.
— Actually, quicker action _________ those workers trapped in the mine.
| A．may have saved | B．must have saved |
| C．should have saved | D．could have saved |
I don’t understand how you got a ticket. I always ______ you ______ a careful driver.
| A．think; are | B．am thinking; are | C．thought; were | D．think; were |
When we think of communication , we _________ think of using words---- talking face to face, writing messages, and so on .
| A．shortly | B．probably | C．practicallly | D．normally |
The first prize winner _______, John was so disappointed that he felt unwilling to know the rest of the results.
| A．announcing | B．announced |
| C．having announced | D．had been announced |
—Do you think the weather will be all right this summer?
—No, _____ we are lucky. The newspaper says it'll be very hot anyway.
| A．if | B．though | C．unless | D．as |