求英语天才来帮忙答题
一.从方框里选择合适并用其适当形式填空.
方框单词:big;friend;teacher;he;do
1.I'm happy to be your ____.
2.I have a ____ family.
3.My parents are both____ in a middle school.
4.My parents ____ like his job because it's dangerons.
5.There are thirty students in his ____.