1．他正期盼着女儿的来信.
He is looking ________ ________ ________ ________  his daughter.
2.  Kate 总面带微笑,这使她很特别.
Kate always ________ a smile on her face and this ________ her ________.
3.  对我们来说每天刷牙两次是有必要的.
It's ________ ________ us ________ brush our teeth twice a day.
4.  你不应该花太多的时间看电视.
You ________ ________ too much time ________ TV.
5.  我认为游泳不如远足有趣.
I don't think swimming is ________ ________ ________ hiking.
6. 报纸上的广告比电视上的要少.
There are ________ ________ in the newspaper ________ ________ on TV.

1.离开房间时,关灯是很容易做到的.
    ___ quite easy___ _______ ______ the lights when you leave a room.
2.学生们空闲时间通常玩电脑游戏.
The students usually____ computer games ___ ____ ____ ____.
3.每只海牛平均大约有10英尺长,重约1000磅.
The average manatee is about____  ___   ____ and it _______about 1,000____．
4.他已经参观过他祖先居住的地方了吗?
_________ he____ the 'place where his ancestors lived________?
5.当你刷牙时,不要让水龙头一直流水,要节约用水.
Don't leave the tap ____while you brush your teeth. We must__________  ___________．