It is only in the last sixty years that________any evidence that Loch Ness Monster might exist.
A．there has been B．there was C．it has been D．it had
高三英语单项填空中等难度题
It is only in the last sixty years that________any evidence that Loch Ness Monster might exist.
A．there has been B．there was C．it has been D．it had
高三英语单项填空中等难度题查看答案及解析
158. It is said in the book that Thomas Edison _____ the world leading inventor for about sixty years.
| A．would be | B．has been | C．was | D．had been |
高三英语单项填空简单题查看答案及解析
It is surprising that Jack, who is only 39 years old, _______ in the field of engineering for 20 years when he entered the company last month.
A. worked B. had worked C. has worked D. working
高三英语单项填空简单题查看答案及解析
. Since last year, the global economic slowdown ________ in many countries. It is expected that the world economy will not recover until the end of 2010.
A. is spreading B. spread C. had spread D. has been spreading
高三英语单项填空简单题查看答案及解析
It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
A．produced B．producing
C．to produce D．having produced
高三英语单项填空中等难度题查看答案及解析
(2013·福建毕业班质检)It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
A．produced B．producing
C．to produce D．having produced
高三英语单项填空中等难度题查看答案及解析
It is said that sixty percent of all energy ________ in the world today is being lost as wasted heat.
A．produced B．producing
C．to produce D．having produced
高三英语单项填空中等难度题查看答案及解析
Only when he reached the teahouse ________ it was the same place he'd been in last year.(2011·全国Ⅰ)
A．he realized B．he did realize
C．realized he D．did he realize
高三英语单项填空中等难度题查看答案及解析
Only when he reached the teahouse________it was the same place he'd been in last year.
A．he realized B．he did realize
C．realized he D．did he realize
高三英语单项填空中等难度题查看答案及解析
Only when he reached the tea-house _________ it was the same place he’d been in last year.
A.he realized B.he did realize
C.realized he D.did he realize
高三英语单项填空中等难度题查看答案及解析