问题
选择题
--- I thought you were coming to repair the doorbell yesterday
.--- I ________. I rang twice but got no answer, so I went home
A．do
B．have done
C．did
D．had done
答案
答案：C
一般过去时态描述过去的动作。“我想昨天你来修门铃了”“我来了。摁了两次门铃响应我就离开了。”