问题
填空题
写出下列动词的过去式。
1. help____
2. phone____
3. stop____
4. do____
5. have____
答案
1. helped 2. phoned 3. stopped 4. did 5. had
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写出下列动词的过去式。
1. help____
2. phone____
3. stop____
4. do____
5. have____
1. helped 2. phoned 3. stopped 4. did 5. had