they study English 2.my sister goes to bed early 3.Wendy and ,i have a pet 改为否定句和一般疑问句
问题描述：
they study English 2.my sister goes to bed early 3.Wendy and ,i have a pet 改为否定句和一般疑问句
答
1.They don't study English./ Do they study English?
2.my sister doesn't go to bed early./ Does your sister go to bed early?
3.Wendy and i don't have a pet./ Do Wendy and you have a pet?