Thank you very much for everything You’ve been so he1pful —— Just let me know if there is anythingelse I can do for you

It was so quiet in the classroom that a needle _____to drop onto the floor. [ ]

It is a good habit (习惯) to read books a pen in her hand.

You seem to show interest in cooking— What? _____, I’m getting tired of it[ ]

This is one of the happiest days ____ spent in my life.