问题补充：
Anne felt nervous she gave a speech in front of so many students.
A. for the first time
B. at the first time
C. the first time
D. at first
答案：
A. for the first time
B. at the first time
(答案→)C. the first time
D. at first
解析：考查连词。根据句中可知本题缺少连词，故用连词短语the first time第一次，选C。
