–Tom, what’s the matter with you? You look so worn out!
--Nothing serious. I ____ my new house all the day and I am afraid I won’t finish until tomorrow afternoon.
| A．have whitewashed | B．am whitewashing |
| C．have been whitewashing | D．shall be whitewashing |
One evening, I was with my friend Auguste Dupin at his house in Paris when he had a visit _____ Georges Godinot, head of the Paris Police.
| A．at | B．from | C．to | D．with |
When he ______ the door, he found his keys were nowhere.
| A．would open | B．was to open | C．had opened | D．opened |
—Putting on a happy face not only helps us make friends but also makes us feel better.
—______.
| A．I’m with you on that | B．I’d love to | C．It’s up to you | D．It’s my pleasure |
We can relax ourselves by taking part in school activities after long hours’ study; _______, we
can learn a great deal from other students.
| A．therefore | B．but | C．however | D．besides |
Some buildings in the past ______ down and new ones are being built there.
| A．will be pulled | B．had been pulled | C．have been pulled | D．are pulling |