Jackin the lab when the power cut occurred.
A.works B.has worked
C.was working D.would work
高三英语单项填空中等难度题
Jackin the lab when the power cut occurred.
A.works B.has worked
C.was working D.would work
高三英语单项填空中等难度题查看答案及解析
Jack ________ in the lab when the power cut occurred.
A. works B. has worked
C. was working D. would work
高三英语单项填空中等难度题查看答案及解析
Jack ___________ in the lab when the power cut occurred.
A.works B.has worked
C.was working D.would work
高三英语单项填空中等难度题查看答案及解析
Jack was working in the lab __________ the power cut occurred.
A.suddenly B.which C.while D.when
高三英语单项填空中等难度题查看答案及解析
__ carefully if any change occurs when doing experiments in the lab..
A. Observe B. To observe
C. Observed D. Observing
高三英语单项填空中等难度题查看答案及解析
________carefully if any change occurs when doing experiments in the lab.
A. Observe B. To observe
C. Observed D. Observing
高三英语单项填空中等难度题查看答案及解析
The inner connection for the entire area _____when there was a sudden power cut yesterday.
A．lost B．was lost C．had lost D．had been lost
高三英语单项填空简单题查看答案及解析
A brilliant idea occurred to him, ___ to his research in the lab.
A. while devoting B. while devoting himself
C. while he was devoted D. while devoted
高三英语单项填空中等难度题查看答案及解析
A brilliant idea occurred to him, ______ to his research in the lab.
A．while devoting B．while devoting himself
C．while he was devoted D．while devoted
高三英语单项填空困难题查看答案及解析
A brilliant idea occurred to him, ______ to his research in the lab．
A．while devoting B．while devoting himself
C．while he was devoted D．while devoted
高三英语单项填空中等难度题查看答案及解析