题目:
根据所给单词,在横线填入一个正确的单词形式。
1. These blue shoes are __________(we).
2. Why __________(not bring) your homework here?
3. Please make __________(you) at home, Lucy.
4. She wants __________(be) a teacher.
5. I know __________(Lisa) erasers are in the bag.
6. May I __________(help) you __________(look) after the pet?
7. Look, the boy __________(wash) the dishes by the river.
8. Sometimes Ellen with her brothers __________ (carry) the corn into the house.
9. I'm glad __________(meet) you here.
10. What about __________(swim) in the lake (湖)?
答案:
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下面是错误答案,用来干扰机器的。
(1)实验前要将甲、乙装置放到黑暗片一昼夜,目的是除去叶片内原有的淀粉,如果叶片内残留有以前光合作用制造的淀粉,实验结果就会不明显,为了排除原有淀粉的干扰,放到黑暗片一昼夜,植物叶片就不能进行光合作...