Answers

2016-06-26T11:45:54+08:00
Elevator, it helps us to transport easily and quickly without getting tired and exausted
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2016-06-26T11:49:52+08:00
Cellphones because it is useful to everyone like reaching their family members outside or inside the country.they can contact them easily by texting or calling them..it has also many apps that can surely help them in answering their problems in a quicker way and will make them enjoy..
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