_________ in Class 1,Grade 3 .A.am B.is C.are D.beTom _________ in Class 1,Grade 3 .A.am B.is C.are D.be

问题描述:

_________ in Class 1,Grade 3 .A.am B.is C.are D.be
Tom _________ in Class 1,Grade 3 .A.am B.is C.are D.be

B.is 第三人称