【热身练习】

请用when 或while完成下列各句：

1. Kate was singing an English song             her mother was reading an evening newspaper.

2.             Linda was running， she hurt her right leg.

3. What were you doing             the UFO arrived at the village？

4.             the UFO landed， I was walking.

5. What was John doing             the plane took off？

[Key： 1. while   2. When / While   3. when   4. When   5. when]

【热身练习】

请用when 或while完成下列各句：

1. Kate was singing an English song             her mother was reading an evening newspaper.

2.             Linda was running， she hurt her right leg.

3. What were you doing             the UFO arrived at the village？

4.             the UFO landed， I was walking.

5. What was John doing             the plane took off？

[Key： 1. while   2. When / While   3. when   4. When   5. when]endprint