After months of voyage, Columbus arrived in_____ later proved a new continent.
| A．where | B．what | C．which | D．that |
The thief tried to break away from the policeman who ______ him, but failed.
| A．has held | B．had held |
| C．was holding | D．would hold |
The telephone _______ three times in the last hour, and each time it ________ for my father.
| A．had rang; was | B．has rung; was |
| C．rang; has been | D．has been ringing; is |
“Aha, you’re a chain smoker!” “Only at home. Nobody _______ that but you.”
| A．discovered | B．had discovered |
| C．discovers | D．is discovering |
“What’s your opinion on the matter, please?” “Oh, sorry, I _______.”
| A．wasn’t to listen | B．haven’t listened |
| C．wasn’t listening | D．hadn’t listened |
“I took part in the TOEFL. It was really hard.” “Did you ______ a lot?”
| A．Have you studied | B．Did you study |
| C．Had you studied | D．Do you study |