D.It is light and easy to CalTy.
3.The wordspringsin Paragraph 3 means
A.a small stream of water flowing naturally from the earth.
B.the season of the year,occurring between winter and summer.
C.the act or an instance of jumping or leapin9.
D.a length of metal wound around,which returns to its original shape after being pushed.
4.According to Paragraph 4,what does Rome plan to do?
A.To make the backpack more comfortable for the wearer.
B.To put the backpack on the market.
C.To test the advantage of the backpack.
D.To promote the backpack in a newspaper or on television.
5.What is implied inif you do get one eventually,just make sure to look both ways before crossing the street!
A.You will be too excited to watch the traffic.
B.Enjoying electronic devices while walking may invite tiaffie accidents.
C.It is not possible for you to get such a backpack.
D.It is wise of you to have such a backpack.
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