- _________the difficult problem,the professor continued to do his experiment.[ ]A. Having solvedB. SolvedC. SolvingD. ...
- Dina,_______ for months to find a job as a waitress,finally took a position at a local advertising agency.[ ]A. strug...
- _____ to reach them on the phone,we sent an e-mail instead.[ ]A. FailB. FailedC. To failD. Having failed
- ____ in the queue for half an hour, the old man suddenly realized he had left the cheque in the car.[ ]A. WaitingB. T...
- You can hardly imagine the once clear canal _____ so seriously polluted that no fish can live in it.[ ]A. have become...
- ___ his work, he started to play the computer games.[ ]A. Being finishedB. Having finishedC. FinishingD. Having been ...
- All the tasks___________ahead of time, they decided to go on holiday for a week.[ ]A. been fulfilledB. were fulfilled...
- _______ from the operation, the patient was advised to stay in hospital for another two weeks.[ ]A. Having not fully ...
- The young man, ______ several attempts to beat the world record in high jumping, decided to haveanother try.[ ]A. to ...
- _______ such heavy pollution already, it may now be too late to clean up the river.[ ]A. Having sufferedB. SufferingC...
- from other continents for millions of years,Australia has many plants and animals not found inany other country in th...
- himself to supporting his brother’s son,he has to let one of his children leave school.[ ]A.Having committedB.Committ...
- ___ countless failures, the scientist finally succeeded in discovering the chemical substance.[ ]A. SufferedB. Being ...
- Dina, for months to find a job as a waitress,finally took a position at a local advertising agency.[ ]A.strugglingB.s...
- from heart attack for years, Professor Wang has to take some medicine with him wherever he goes.[ ]A. SufferedB. Suff...