________ all the homework assigned by the school, the students have to work at it till midnight.
| A．Completing | B．To complete |
| C．Having completed | D．To have completed |
-Waiter?
-______?Just a minute please.
| A．What. | B．Hello | C．OK | D．Yes. |
One more week,______we will leave school and have a holiday.
| A．so | B．but | C．and | D．or |
He is no fool at all;_________，he is the smartest boy I have ever seen.
| A．in addition | B．in fact | C．in particular | D．in short |
-How about his design?
-Well, to tell the truth, it is______but satisfactory.
| A．something | B．anything | C．everything | D．nothing |
-What's up? You look worried.
Well,I_____on the problem for 5 hours but I haven't got a single clue.
| A．have worked | B．worked |
| C．will work | D．have been working |