将下列句子改为祈使句

问题描述:

将下列句子改为祈使句
1.You must be careful with your pronunciation.
2.I want Tom to fetch me a cup of tea.
3.Do remember to lock the door when you leave.
4.You should not forget to bring your exercise book next book.

Be careful with your pronunciation.Fetch me a cup of tea,Tom.Lock the door when you leave.Don't forget to bring your exercise book next time(我觉得不是book而是time).