题目内容
3. You can’t see cables because they are u the ground.
4. We should speak p to our teachers.
5. If you r to a question,you answer it.
3. under 4. politely 5. reply
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题目内容
3. You can’t see cables because they are u the ground.
4. We should speak p to our teachers.
5. If you r to a question,you answer it.
3. under 4. politely 5. reply