____ their work, they had a rest. [ ]A. Having finished B. Finished C

题型：同步题难度：来源：

____ their work, they had a rest. [     ]
A. Having finished
B. Finished
C. Having been finished
D. Finishing

答案

举一反三

_______ a reply, he decided to write again.[     ]
A. Not receiving
B. Receiving not
C. Not having received
D. Having not received

题型：同步题难度：| 查看答案

_______such heavy pollution already, it may now be too late to clean up the river.[     ]
A. Having suffered
B. Suffering
C. To suffer
D. Suffered

题型：同步题难度：| 查看答案

____ enough money, Jim was unable to buy his girl-friend expensive jewellery. [ ]
A. Not to save
B. Not saving
C. Not saved
D. Not having saved

题型：专项题难度：| 查看答案

— Would you go to the concert this evening?
— Sorry. ________ tomorrow"s lessons, I have no time to go out with you.[     ]
A. Not preparing
B. Not having prepared
C. Not to prepare
D. Being not prepared

题型：同步题难度：| 查看答案

_______ the apartment, the firefighters shut off the gas, opened the windows and rescued the
old  couple.  [      ]
A. To break into
B. To be broken into
C. Having broken into
D. Broken into

题型：专项题难度：| 查看答案