—I' m going to take piano lessons every day.
A：What
B：When
C：Where
D：How
下列句中加下划线词的意义和用法相同的一组是（ ）。
过去人们是“攒钱买房”，现在大多是“贷款买房”。这主要反映了（ ）
—The man at the gate _______ be our headmaster. He is always standing there every morning.
—No, it _______ be him. He is holding a meeting in the office now.
毡 ____ ____ ____
卸 ____ ____ ____
