______a nurse, she knew how to take care of a patient.
A．Been B．Being C．To be D．Be
練習冊系列答案
相關習題

科目：高中英語 來源：不詳 題型：單選題


We don’t live here;we_____.
A．just visitB．a(chǎn)re just visitingC．just visitedD．have just visited

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


In the past few years, Chinese scientists ________ great success in the field of space flight.
A．a(chǎn)chievedB．have achievedC．wonD．had won

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—Why didn’t you come to the meeting yesterday?
—I_________,but my old father came unexpectedly.
A．had toB．was going to
C．want toD．ought to

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


Take care! This kind of glass ___ easily.
A．is brokenB．was brokenC．breaksD．has been broken

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


The group       in size over the past few years．
A．doubleB．was doublingC．has doubledD．is doubled

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

.Mr. Zhao finally ______ innocent after in prison for 10 years, and soon he was set free and got compensation for the wrong done to him.
A．provedB．was provedC．provesD．has been proved

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


This is the only one of the oldest customs that ________ down in this area so far.
A．was keptB．were kept
C．has been keptD．have been kept

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


An expert, together with some scientists ______to help in the work.
A．was sentB．were sentC．has sentD．have sent

查看答案和解析>>

同步練習冊答案