根据句意及首字母提示填空。

1. Nothing is i____ if you put your heart into it.

2. China is becoming stronger and stronger. We are p____ of it.

3. The film is very interesting. It's well w____ seeing.

4. Our teacher is always very friendly to us but sometimes she is very s____ with us.

5. The most wonderful match will be on. All of the boys are looking f____ to it.

母鸡、小鸡共68只，一起分吃47条小虫，一只母鸡吃4条虫，4只小鸡共吃一条虫．则小鸡有______只，母鸡有______只．