3. He ________ (scan) the horizon, looking for land.

2. He ________ (pile) old paper in the corner of the room.

1. We all __________ (desire) peace and happiness.

6. 他解释了声音如何在水中传导。

　 He gave an ______________ of how ________ __________ in water.

5. 运动使我的肌肉变得很结实。

　 Exercise _______ my muscles very ________.

4. 出于对无家可归的孩子们的同情, 他留他们过夜。

　 ____ _____ _____________ for the homeless children, he gave them shelter for the night.

3. 他们不断的讲她是如何的聪明时, 她觉得不好意思。

　 She _______　 ____________ when they kept telling how clever she was.

2. 我真羡慕你的才能啊！

　 How I _________ you _____________!

1. 她陪朋友去听音乐会。

　 She ___________ her friend __ the __________.

6. There are still a few problems to be ____________ before we can complete the project.