问题
教学研究常用的方法有（）
A、观察法B、调查法C、实验法D、资料研究法
正确答案是：
同类题型
Look! What is he doing — He’s______________ his wallet, but he can’t _______ it.Let’s help him.
Jane is getting on well with her classmates.Everyone in our class__________her.
Would you mind ______ those old jeans
I _______ in London for many years, but I’ve never regretted my final decision to move back to China