It long before we the result of the experiment．
A．will not be；will know
B．is；will know
C．will not be；know
D．is; know
答案：C
考查固定句型。It be 一段时间 before从句。意为：一段时间以后某事才发生。Before从句里用一般现在时代替将来时，主句用将来时。故C正确。
My mother is a kind and nice woman. 小题1:____ One Sunday night, when I was watching the film Harry Potter very happily, she asked me to go to bed. 小题2:______ that I didn’t move. But for a while, I noticed that she didn’t say anything. 小题3:_____ I was so sad and that I went into my room and cried. I thought “I have only two nights in a week to enjoy the TV. 小题4:_____”The next day she cooked and talked with me as usual. I pretended not to hear, but she didn’t mind and told me why she didn’t allow me to watch TV. 小题5:_____ Then I understood her. I love my mother.
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