1. morning
句意:这是周日_____.
根据课文第一句：时间是周日上午，故本题答案为：morning。
2. cleaning
句意：麦克的爸爸在______.
根据书上48页第二句：My father is cleaning the car. 可知本题答案为：cleaning
3. helping
句意：麦克在_______他。
根据第三句：I am helping him. 可知麦克正在帮他爸爸，故填单词helping.
4. cooking
根据第四句：My mother is cooking breakfast. 可知他妈妈正在做早餐。故本题答案为：cooking
5. sweeping; floor
根据第六句：She is sweeping the floor。可知海伦在扫地，故本题答案为：sweeping ; floor
6. sleeping
根据第十句：He is sleeping. 可知他在睡觉，故本题答案为：sleeping.
7. busy
根据49页第三句：She is busy. 可知她很忙，故本题答案为：busy.
8. dinner
根据第四句：She is cooking dinner. 可知她在做晚饭，故答案为：dinner.
9. washing;dishes
根据第六句：She is washing the dishes. 她在洗碗。可知本题答案为：washing; dishes;
10. cleaning
根据第七句：I'm cleaning the table. 我在擦桌子。可知答案为：cleaning.
11. watching TV
根据书上：We are watching TV too. 可知他们在看电视，故本题答案为：watching TV。
