朱砂的主产地是（）
A.湖南、广西、云南
B.江西、湖南、广东
C.河北、山西、广东
D.湖南、贵州、四川
E.四川、广东、云南
参考答案：D
会计档案保管清册需要保管25年。( )
根据句意和汉语提示，填写恰当的短语完成下列句子。
1. I hope you can come back___________ (尽快地).
2. All the teachers ____________(乐意帮助) students to solve their problems.
3. We should ___________(坚持) our dreams and try to achieve them.
4. ____________(数以千计的) students were surveyed about their favorite foods.
5. My sister _____________(梦想) becoming a singer. She likes singing very much.
