用适当的代词填空。

1．That's my schoolbag. Give _____ to _____, please.

2．A: Oh, dear! I can't find _____ bike.

      B: Don't worry. I think I can help _____. Is that bike over there _____?

3．A: Dad, we can't carry this bag. It's too heavy. Could you come and help _____?

      B: Wait a minute. I can help _____ carry it.

4．They are your new teachers. Please go and say "hello" to _____.

5．Bob is an English boy. _____ father is Mr Brown.

据香港媒体《壹周刊》报道，某品牌旗下的中草药洗发露，经过香港公证所化验后，含有被美国列为致癌物质的二恶烷。该品牌公司则称本集团的产品符合世界包括欧盟及美国地区所定的标准，《壹周刊》文章所指产品所含的微量二恶烷远低于世界安全指引，绝对不会对人体健康构成影响。
下列哪项如果正确，最能支持该公司的论述( )

A．其他公司生产的洗发露中也含有二恶烷
B．二恶烷的致癌性尚待进一步的确定
C．符合世界标准的洗发露都不会影响人体健康
D．二恶烷不会在人体内残留聚集