题目内容

用所给动词的适当形式填空。
1. This road          (break) down by the flood all the time.
2. We     _   (teach) how to do experiment in the lab yesterday,
3. A supermarket           (build) near our building next year.
4. These flowers____   (should water). look! The soil under them is almost dry.
5. These used books____   (can reuse) by those new students.
6. Those dangerous houses     _     (may damage) once again by the aftershock(余震).
1. is broken   2. were taught   3. will be built  4. should be watered
5. can be reused   6. may be damaged
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