精英家教网 > 高中英语 > 题目详情
.
To help today’s customers make a choice, a company in New York _____a video trolley — a supermarket trolley with a video screen to display advertisement and price information.  
A.has inventedB.had inventedC.inventsD.is inventing
练习册系列答案
相关习题

科目:高中英语 来源:不详 题型:单选题


---You haven’t said one word about the design, Joe. What’s your idea?
---Sorry. I________about something else.
A.thoughtB.am thinking
C.was thinkingD.had thought

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

.
—Do you want to go to the cinema tonight?
—Sorry, I’m so tired. I ___________ an early night.
A.haveB.am havingC.have hadD.had

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

The boy was in the water and his canoe was_______ away.
A.runningB.floating.C.flowingD.pulling

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

.
----Is there anything wrong, Bob? You look sad.
----Oh, nothing much. In fact, I ____ of my friends back home.
A.have just thoughtB.was just thinking
C.would just thinkD.will just be thinking

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题


Every pupil is ______to be in the classroom at 7.am.
A.supposedB.being supposed
C.supposingD.to suppose

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

—How is your collection going?
—I need one more stamp before my collection     
A.is completedB.will be completedC.has finishedD.will be finished

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

.
You must put your heart into what you are doing, or you ________ your aim.   
A.never achievedB.will never achieve
C.have never achievedD.are never achieving

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

-How long have you been at home?
-Half an hour. My son _________ me home.
A.would driveB.had drivenC.has been drivingD.drove

查看答案和解析>>

同步练习册答案