A:
B:
C:
D:
A:Hello, Sally.Welcome to my home(家).Here is some fruit. ____
B:No, I don't.
A:Do you like apples?
B:____
A:____
B:Thanks.
A.Here you are.
B.Yes, I do.
C.Do you like pears?
如图,直线m∥n,△ABC为等腰三角形,∠BAC=90°,则∠1=____°.