．The forest guard often find campfires that had not been _______ completely.
| A．turned down | B．put out | C．put away | D．turned over |
year after year , tigers are becoming fewer and fewer .
| A．Having been killed | B．Killing | C．Killed | D．Having killed |
It was the training _____ he had as a young man _____ made him such a good engineer.
| A．what; what | B．which; that | C．that; which | D．that; what |
— What about having a drink?
— _____.
| A．Good idea | B．Help yourself | C．Go ahead, please | D．Me, too |
---Why did you drop the chance of earning big money?
--- _________. You know, I don't want to get rich by taking risks.
| A．All is well that ends well. | B．One man's meat is another's poison |
| C．Better safe than sorry | D．No sweet without sweat |
---What do you think made the girl so glad?
--- __________ a beautiful necklace.
| A．As she was sent | B．Being sent | C．Sent | D．To be sent |