A：was painting
B：will be painting
C：have painted
D：have been painting
_______ you like to play? Yes, I do.
①锅盖 ②密封圈 ③安全阀 ④重锤
填空。
①“泪”字的读音是____。
②“念”字共有____笔。
③“呆”字的第三笔是____。
④“孩”字的部首是____。
