问题补充:
Last Sunday we watched at the zoo.
A. an elephant show
B. elephant show
C. elephants show
D. an elephants show
答案:
(答案→)A. an elephant show
B. elephant show
C. elephants show
D. an elephants show
解析:an elephant show意为“大象表演”。elephant以元音开头,其前应用不定冠词an。