问题
填空题
看看你的应变能力，用所给单词的适当形式填空。
1. Today is June 1, it's________(child)Day.
2. My favourite subject is social______(study).
3. There are lots of______(sheep) on the hill.
4. He_______ (study) very hard when he was young.
5. She is a _____(Canada).
答案
1.Children's 2.studies 3.sheep 4.studied 5.Canadian
ε2，该电容器的电容值为（）。