------Who is that girl? -------_____is my sister.A.I B.He C.She
She is her friend. A.talking at B.talking to C.taking to
We can see lots interesting things. A.in B.on C.of
But chopsticksdifficult A.am B.is C.are
I’m the______. A.winer B.win C.winner
They_____going to Hainan. A.is B.are C.am