用括号中所给单词的适当形式填空。

1. The Browns have four children and Lucy is their ________ (old) child.

2. The experiment was lots ________ (easy) than they had expected.

3. Today many women continue to work after they get ________ (marry).

4. There were many young ________ (couple) taking part in the activity.

5. I think food that is ________ (fresh) cooked is healthier than ready-made food.