If I hadn’t stood under the ladder to catch you, you _________ now.
| A．wouldn’t be smiling | B．couldn’t have smiled |
| C．won’t smile | D．didn’t smile |
I know Mr Brown； we ＿＿＿＿＿＿ to each other at an international conference.
| A．are introduced | B．have been introduced |
| C．were introduced | D．had been introduced |
—— Where ＿＿＿＿＿?
—— I got stuck in the heavy traffic.I ＿＿＿＿＿ here earlier.
| A．did you go； had arrived | ||
| B．have you been； would have been | C．were you； would come | D．are you； was |
The traffic in our city is already good and it ＿＿＿even better.
| A．gets | B．got | C．has got | D．is getting |
I’ve finally finished my paper and it ＿＿＿＿＿ me an entire month.
| A．takes | B．took | C．was taken | D．had taken |
Good heavens! There you are! We＿＿＿anxious about you, and we ＿＿＿you back throughout the night.
| A．are； expect | B．were； had expected |
| C．have been； were expecting | D．are； were expecting |