Robert Ilijason，a 39-year-old IT specialist，once had to drive 20 minutes with his screaming baby in the backseat to an open grocery store to buy food for his hungry son.It was the late-night experience that gave Robert Ilijason the idea to open Sweden's first unstaffed convenience store.
   Now Robert Ilijason runs a 24-hour shop with no cashier.Customers use their cell phones to unlock the door and scan their purchases.All they need to do is to register for the service and download an app.They get charged for their purchases each month.
   The shop has basics like milk，bread，sugar，canned food and other products that you expect to find in a small convenience store.But it doesn't have tobacco or medical drugs because of the risk of theft.Alcohol cannot be sold in convenience stores in Sweden.
   The no-service store has more advantages.Raymond Arvidsson，a friend of Ilijason's，did his shopping in less than a minute. "No queues，" he said，smiling. "Quick in，quick out.I like."
   "My ambition is to spread this idea to other villages and small towns，" said Ilijason. "It is incredible that no one has thought of this before." He hopes the savings of having no staff will help bring back small stores to the countryside.
   But a bigger challenge has been facing some of the elderly residents in Viken.Tuve Nilsson，75，said there were many more shops in the town when he moved here with his family in 1976.He welcomed Ilijason's new store，saying it could be convenient for elderly people living alone.But he didn't know how to get the hang of the technology involved.
   Ilijason is considering other ways to unlock the door that wouldn't require using an app.He's ruled out face-recognition or fingerprint scanners，but is thinking of installing a credit card reader like some banks use.He's also considering having one person man the store for a few hours a day to help customers who aren't comfortable with modern technology.

（1）Robert Ilijason's late- night experience is mentioned to tell us

A

A

.
A．why he opened the unstaffed food shop
B．how to open the unstaffed food shop
C．how to look after the hungry children
D．an open grocery store is very important
（2）What can we know about Robert Ilijason's first unstaffed food shop？

B

B

A．It charges customers for nothing.
B．What customers need is a phone
C．Customers can purchase goods in cash
D．Customers can buy whatever they want.
（3）From what Raymond Arvidsson said，we learn the shop is well known for

C

C

.
A．its wonderful food
B．its kind service
C．its quick purchase
D．its good safety
（4）It can be inferred from the last paragraph that

B

B

.
A．Ilijason's store has no disadvantages
B．all the customers are not comfortable with modern technology
C．Ilijason will not open another kind of this no-service store
D．face-recognition will be dismissed in Ilijason's new store