While ____ the dog, you should take care not to get loose . Otherwise, it may be dangerous to strangers.
A.walking;B.walkedC.walking forD.training for
A
考查狀語從句的省略!霸阱薰窌r注意不要松手,否則狗會威脅到陌生人!盬hile (you are)walking the dog---
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:單選題

—What a beautiful girl your daughter is!
—______.
A.So she is and so are youB.So is she and so are you
C.So she is and so you areD.So she is and so you are

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

If _______ in class, you will have to clean the classroom for a week as a punishment.
A.caught sleepingB.caught to sleepC.catching sleepingD.to catch to sleep

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

When first ________ to the market, the computer software . was not a success due to its complexity in operation.
A.introducingB.being introducedC.introducedD.to be introduced

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

The experiment shows that proper amounts of exercise, if      regularly,  can improve our health.   
A.being carried outB.carried out
C.carrying outD.to carry out

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

Only when I made it to the train station _______ that I had left my ticket at home.
A.have I realizedB.did I realizeC.had I realizedD.would I realize

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

I have been living in the United States for twenty years, but seldom _____ so lonely as now.
A.have I feltB.I had feltC.I have feltD.had I felt

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

—How much do you know about the 3D film technology?
—A little. Not until _______the hot movie Avatar _______ some about it.
A.did I see; did I begin to learnB.I saw; I began to learn
C.I saw; did I begin to learn D.did I see; I began to learn

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

_______will Mr. Black be able to regain control of the company.
A.Only by working hardB.Only he works hard
C.With hard workD.Only if work hard

查看答案和解析>>

同步練習(xí)冊答案