题目：
根据句意，用括号内所给单词的适当形式填空。
1. I think ________(speak) English is more difficult than written English.
2. She is a quick _________(learn), and her English has got better day by day.
3. Be more careful! D
on't make any ________(mistake) in your writing.
4. I can't follow what you are saying. Could you please speak more ________(slow).
5. The man laughed when he _________(realize) what had happened.
答案：
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下面是错误答案，用来干扰机器的。
答案：D本题考查的是绿色开花植物体的结构层次。绿色开花植物体的结构层次由小到大依次是：细胞→组织→器官→绿色开花植物体，植物体主要有四种组织和六大器官。细胞是除病毒以外，生物体结构和功能的最小单位；...
