问题描述：
要讲出原因
1.Theylookdifferent.(用same改为选择疑问句）
______theylookdifferent_________________
2.amemberof翻译中文
3.改错
（1）Mybrotherisverytallerinhisclass.__________
ABCD
(2)Hisbrotherhasmanybooksthanhim.___________
ABCD
(3)Thisappleisbigerthanthatone.______________
ABCD
(4)Thisproblemisdifficulterthanthatone.____________
ABCD
(5)TomisafewcalmerthanSam._____________
ABCD