单项选择题
A.It sends out signals for help. B.It takes over the driving immediately. C.It stops the car automatically. D.It sounds an alarm to warn the driver
A.Who are going to attend the meeting. B.What’s to be discussed at the meeting. C.Where the meeting is to be held. D.When the meeting is to be held.
A.He has the best TV sets for sale. B.His TV sets have a good sale. C.His TV sets are all of the same brand. D.He doesn’t have the newest models right now.