根据对话内容，从方框中选择恰当的选项补全对话，其中有两项多余。

A：What are those．Ben?

B：I like collecting them．

A：Cool!  They are small but they look real!．

B：I have collected them since I was 6 years old．How about you?

 A：Yes．But mine are nothing like yours．I make them by myself.

B：

A：Many cars and planes．I also made a small boat last summer holiday.

B：I've never made any models．

A：Let me see．Almost three weeks．

B：Wow, it's a long time．

A．What kind of models have you built? B．When did you start to collect them? C．Is it hard? D．Where did you get those things? E．They are some of my models． F．How long does it take to make a model boat? G．Do you have models, too?