痛苦崩溃伤心欲绝句子:I think the old should be spoken to _____(polite)

I think the old should be spoken to _____(polite) i think the work easy to do I do not think I have the pleasure.何解？ I don't think a boy of 8 years old can do it. I could fing my birthplace __ __ the old photo. I think the homework will ? us about two hours. i don't think the film is interesting I think the pen is mine . please give ( ). I think you are the last person ican see 是什么意思？ I think we'd better split the difference.