With the development of thecentral and western China，more and more modemcities have ——in what wasa wasteland ten years ago

The　president　made　a＿＿speech　at　the　opening　ceremony　of　the　sports　meeting，which　encouraged　the　sportsmen　greatly．

by, _____ go out to contact other people inperson, more and more people tend to socialize with others via electronicdevices

Itisnothowmuchwedobuthowmuchloveweputintowhatwedo _____benefitsourworkmost.[ ]

The last few years ________ many natural disasters around the world, from drought to earthquake