推铁饼时，身体的任何部分触及了铁圈上沿或圈外地面，裁判员应举红旗。
A. 对
B. 错
铁饼在接触地面时触及了落地区角度线或落在落地区角度线以外，裁判员应举白旗。
A. 对
B. 错
Complete the sentence with one of three words.It takes a lot of ____________ to make bread.
A. skill
B. skillful
C. skillfully
In my ____________ , people celebrate a person’s birthday.
A. culture
B. cultural
C. culturally
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