用所給詞的適當(dāng)形武填空。
1. My sister is considering __________ (change) her job because of the low salary.
2. How many _______ (fall) have you seen?
3. This is an ________ (educate) book.
4. _________ (lucky) , my sister helped me with my housework.
5. After the flood, many people became ________ (home).
1. changing  2. falls 3. educationa1  4. Luckily  5. homeless
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