Air is________and of no smell but we can feel its motion when there is a wind.
Thesheetsforyourbed____washing.
OneofMarx’sworks _____writteninEnglishinthe1860s.
Thenumberofthepeoplewho _____cars _____increasing.
____ofthemoney _____usedup.
Seventypercentofthestudentsinourschool_____fromthecountryside.