people could use a time mechine for travelling to the future

people could use a time mechine for travelling to the future Travelling is popular with people for a long time.Many of to Travelling has been popular with people for a long time.Many people will use the robots to do some cleaning in the future 选择People will use robots.,.the housework in the future. people will use l___ paper in the future They made full use of the time they could ___ to do experime Many people with a life time to wait,gave up waiting for the Will you use the computer to study in the future? travelling in the future in Shanghai Travelling in the future 英语作文 It was a long time before people began to use written langua