Water is composed _______ hydrogen and oxygen.
A、ofA
becomposedof：由…组成。句意：水是由氢与氧化合而成的。
Thesadconditionofwomenworkingashouseservantsaroundtheworldreceivedmuchmedia_____earlythisyear.
It_______methreeyearstodrawthebeautifulhorses.
Shehasnohostilitytous,_____canbejudgedfromhereyes。
Thenewdiscovery_______beofgreatservicetomankind.
Ittookmeamonthtogetrid_______thecough.
