The scientists claimed( 声称) to _______ a jet plane that uses atomic energy as pr - 高中英语试题 - 超级试练试题库

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题型：同步题难度：来源：

The scientists claimed( 声称) to _______ a jet plane that uses atomic energy as propelling _____,
but they can’t produce an atom of evidence to prove it. [ ]

A. design; power
B. have designed; power
C. design; force
D. have designed; strength

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核心考点

试题【The scientists claimed( 声称) to _______ a jet plane that uses atomic energy as pr】；主要考察你对现在完成时等知识点的理解。[详细]

举一反三

The widespread of super-hybrid rice around the world ______the lives of millions and millions of
people suffering from hunger to a great level. [     ]
A. improved
B. is improving
C. has improved
D. has been improving

题型：同步题难度：| 查看答案

After several years of observation, the research group ______ the conclusion that language acquisition is
faster when students ______ to the situation where it is spoken.[     ]
A. has come to; expose
B. have arrived at; are exposed
C. has concluded; are exposed
D. have reached; expose

题型：同步题难度：| 查看答案

My father _______ to Shanghai. He _______ for over 2 months. [     ]
A. has been, has left
B. has gone, has gone
C. has gone, has been away
D. has been, has gone

题型：河北省模拟题难度：| 查看答案

Progress ________ so far very good and we are sure that the work will be finished on time．[     ]
A．was
B．had been
C．has been
D．will be

题型：江苏模拟题难度：| 查看答案

- _______ David and Vicky _____ married?
- For about three years.[ ]
A. How long were; have been
B. How long have; have been
C. How long have; been
D. How long did; get

题型：同步题难度：| 查看答案

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