The old man has retired from the factory. He _____ there for 30 years.
| A．works | B．worked |
| C．has worked | D．was working |
It even leaves the wise scientists in wonder____ they should call the newly-born creature, which looks half-human and half-animal.
| A．what | B．how | C．why | D．that |
The moonlight was bright and about 15 yards up the road there was a deep ___ thrown by a tree.
| A．shade | B．shelter | C．shadow | D．reflection |
-----You must have enjoyed using your new camera on the trip to Tibet.
----- I would have, but I _____ it in David’s car when he drove me to the airport.
| A．had left | B．have left | C．were to leave | D．left |
----- Better get down to your work, Tom.
-----____________.
| A．Never mind | B．Mind your own business | C．Don’t mention it | D．So what |
Everyone in the village is very friendly. It doesn’t matter ___ you have lived there for a short or a long time.
| A．why | B．how | C．when | D．whether |