下图是某种遗传病的家族谱系，请据图回答（以A、a表示有关基因）
Ⅱ—5号和Ⅲ—9号的基因型分别是（）和（）
参考答案：Aa；aa
根据括号内的要求完成下列句子，每空一词。
1. Ruth comes from New York. (同义句)
Ruth _________ _________ New York.
2. My father is tall and a little bit heavy. (对划线部分提问)
_________ does your father _________ _________?
3. It's raining today. (对划线部分提问)
_________ is the _________ today?
4. Mr. Smith is a heavy man.He has short straight gray hair. (合并成一句)
Mr. Smith is a heavy man _________ short straight gray hair.
5.They have an English class every day. (用now改写)
They _________ _________ an English class now.
阿里巴巴网站属于什么类型的电子商务站点（）
A.C-C
B.B-B
C.B-C
D.B-G
