___ countless failures, the scientist finally succeeded in discovering the chemi

题型：福建省期中题难度：来源：

___ countless failures, the scientist finally succeeded in discovering the chemical substance. [      ]
A. Suffered
B. Being suffered
C. To suffer
D. Having suffered

答案

举一反三

Dina, for months to find a job as a waitress,finally took a position at a local advertising agency.
[ ]
A.struggling
B.struggled
C.having struggled
D.to struggle

题型：安徽省同步题难度：| 查看答案

from heart attack for years, Professor Wang has to take some medicine with him wherever he goes. [ ]
A. Suffered
B. Suffering
C. Having suffered
D. Being suffered

题型：安徽省同步题难度：| 查看答案

________ back to China, all the staff who had worked in Libya strongly felt that our country is very
powerful. [ ]
A. To fly
B. Being flying
C. To be flown
D. Having been flown

题型：江苏专项题难度：| 查看答案

Mr.Jones, _______ a great loss last year, has no courage to go on with his business.[ ]
A. suffering
B. to suffer
C. suffered
D. having suffered

题型：江苏专项题难度：| 查看答案

____ at a decision, they immediately set to work. [     ]
A. Arriving
B. Arrived
C. Having arrived
D. Having been arrived

题型：同步题难度：| 查看答案