有点小问题 英语1.About a hird of U.S.A were covered三分之二怎么写?2..The d

有点小问题 英语1.About a hird of U.S.A were covered三分之二怎么写?2..The d 两道英语选择题.1.The（ ）of the house were covered with yellow.A.roof 70% of the earth -----covered with water.A.are B.is C.were D 英语被动语态小问题①The ground was covered with pieces of paper,old ty △In1850,about a third of U.S.A.( )covered by forests.A.were 【英语】关于主谓一致△In1850，about a third of U.S.A.( )covered by fores 1.One-third of the area _____ covered with green trees.About (About two thirds) of the earth is covered with water. 2.About two thirds of Earth is covered by water.用英语 句子解释是什么 Washington D.C.was named( )the first President of the U.S.A 押尾韵小诗（英语）If I were a bird,I'd sing a______,And fly about the 英语选择1、The population of China is___than___of the U.S.A and J