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6.Duringtheafter-schoolactivities,somestudentsareplayingontheplaygroundwhiletherestdoingsomehomeworkintheclassrooms.A.happy;areB.happily;isC.happily;areD.happy;is7.Aboutseventypercentofourearchbywater.A.iscoveri

题目详情
6.During the after-school activities,some students are playing____on the playground while the rest_____doing some homework in the classrooms.
A.happy;are B.happily;is C.happily;are D.happy;is
7.About seventy percent of our earch____by water.
A.is covering B.is covered C.are covered D.are covering
▼优质解答
答案和解析
C play + n.或者 adv.
the rest (students)+ 复数
B earth不可数+ is