从括号中选择适当的单词填空

【1】—I haven't seen your grandfather for several years. Where has he gone?

—Oh，he has ______(gone/been)to the US.

【2】The woman is afraid to _______(follow/be followed)by others.

【3】The rice ______(grows/is grown)in the south of China by farmers every year.

【4】The writer _______(were/was)doing morning exercises when I saw her.

【5】We are supposed _______(saved/to save)energy.