（）1.---Look,who is coming?---_______ must be our English tea

（）1.---Look,who is coming?---_______ must be our English teacher.
A.She B.He C.It D.This
( )2.______ of you would like to go with me
A.Who B.Which C.All D.Both
( )3.I'll do ________ for my motherland.
A.anything B.many C.much D.something
请简述原因（理由）,如果采纳了,