-Has Tommy finished his homework yet?
-I have no idea； he ____ it this morning.
| A．was doing | B．had been doing | C．has done | D．did |
Tom was about to close the windows_____ his attention was caught by a bird.
| A．when | B．if | C．and | D．till |
—Is it all right if I keep this photo？
—_______.
| A．No，you don’t | B．No, it shouldn’t |
| C．I’m afraid not | D．Don’t keep it |
Mr. Black is very happy because the clothes made in his factory have never been .
| A．popular | B．more popular |
| C．most popular | D．the most popular |
---Hey,can I ask you a favor?
---Sure, ________.
| A．here you are | B．just as I thought |
| C．how is it going | D．what can I do for you? |
The manager slept very late last night, ________at midnight.
| A．or rather | B．rather than | C．other than | D．more than |