a、b都是非0的自然数，如果a÷b=3，那么a与b的最大公因数是（ ），最小公倍数是（ ）。
b；a
I have pen.[ ]
A. two
B. one
C. three
用所给词的适当形式填空。
1. _____ (her) is my aunt.
2. That is _____ (Mike) book.
3. _____ (it) are his photos.
4. Mr Black is _____ (he) uncle.
5. Are those _____ (you) brothers?
