People in the west makea rule to buy Christmas presents for their friends.A. thatB. itC.

问题补充：

People in the west makea rule to buy Christmas presents for their friends.

A. that

B. it

C. this

D. as

答案：

A. that

(答案→)B. it

C. this

D. as

解析：本题考查代词。句中it作形式宾语，真正的宾语为不定式to buy Christmas presents for their friends。句意：西方人们为他们的朋友买圣诞礼物成为规则。