Ordinary people ____ ____ cholera
用所给词的适当形式填空
(1)What about ____ (eat) some fish for supper?
(2)Sam is an ____ (England) boy.
(3)He can finish ____ (read) the book this week.
(4)What ____ he often ____ (do) after school?
(5)This is my cat. Do you know ____ (it) name?
已知关于x的一元二次方程x2+2x-a=0有两个相等的实数根,则a的值是( )