Question

I sent ______ e-mail to Amy to say thanks for her help with my study.

A．a

B．/

C．an

D．the

Answer 1

C

解析試題分析：e-mail 是以元音音素開頭的單詞，故前面不定冠詞用an。句意為：我發了一封電子郵件給Amy，感謝她幫助我學習。故選C。
考點：考查冠詞。