International communications have led to ________.
| A．using English widely. | B．English having used widely. |
| C．English to be used widely. | D．English being used widely |
Mr. Smith would have come to see you if it had been possible, but he __________ so busy.
| A．was | B．had been | C．has been | D．were |
--- Could you tell me what he said just now?
--- Sorry, I ______ what was going on outside.
| A．had thought | B．was thinking | C．thought | D．think |
The unemployment rate in this district from 6% to 5% in the past two years.
| A．has fallen | B．had fallen | C．is falling | D．was falling |
Cathy is taking notes of the grammatical rules in class at Sunshine School，where she English now.
| A．studies | B．studied | C．is studying | D．was studying |
His silence at the meeting suggested that he _________ with you.
| A．didn’t agree | B．hadn’t agreed |
| C．wouldn’t agree | D．shouldn’t agree |