一般现在时的肯定句否定句一般疑问句.一般过去时的肯定句否定句一般疑问句.

问题描述:

一般现在时的肯定句否定句一般疑问句.一般过去时的肯定句否定句一般疑问句.

i have lunch at 12' o clock.i don't have lunch at 12'o clock .do you have lunch at 12'o clock?i called you last night.i didn't call you last night.did you call me last night?