用be或can 适当形式填空 ：

题目

用be或can 适当形式填空 ：
1.I ( ) sixteen years old .I ( ) born in 1995.I ( )
2.A:When ( ) your parents born
B:They ( ) both forty years old now .They ( ) born in 1972.(be)
3.A:( ) you ride a bike
B:Yes ,I ( ) .I ( ) ride a bike when I waa ten years old .(can )

答案

1.am,was,
2.were,are,were
3.Can,can,could