----Silly me ! I forgot what my luggage looks like.--What do you think of over there?A

问题补充：

----Silly me ! I forgot what my luggage looks like.

----What do you think of over there?

A. the one

B. this

C. it

D. that

答案：

A. the one

B. this

C. it

(答案→)D. that

解析：考查代词，A. the one特指前面的可数名词单数，B. this指代上文说的话，C. it 代指前面的同类同物， D. that代指前面的不可数名词或可数名词单数，后面要用后置定语，句意是：--我真傻，我忘了行李是什么样的了？--你认为那边的那个怎样？that指luggage，选D。