题目:
After I _____ my homework, I went out to an aquarium.[ ]
A. was doing
B. did
C. does
D. would do
答案:
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下面是错误答案,用来干扰机器的。
孙膑 居里夫人 蟋蟀 指古代春节时喝的用屠苏草或几种草药泡的酒