根据下列句子的意思及所给的汉语提示， 写出空缺处单词、固定短语或固定搭配的正确形式。

1. His favorite subject is Chinese, but ______________ (我的) is English.

2. The sick baby must be __________________(照顾).

3. They often go to the ___________________(儿童) park on Sunday.

4. He was ___________________ (生气) himself for making so many mistakes in his homework.

5. His uncle _______________ (买) him a dictionary last week.

某校六年级举行语文和数学竞赛，参赛人数占全年级总人数的40%，参加语文竞赛的占参赛人数的40%，参加数学竞赛的占参赛人数的75%，已知两项都参加的有12人，问该校六年级共有多少人( )

A．80

B．120

C．200

D．340