Someone is knocking at the door. Is it Amy–It ________ be her. She is giving a performance at the theater now.

he development of modern society, E-mail as wellas telephonesan important part in dailycommunication

Various student clubs are set up in many senior high schools to urge students to ________ the opportunities to cultivate their good virtues and qualities.

What’s the matter— I have stomachache. Maybe I have eaten _____________ tonight.

What is the correct structure of the sentence “Driving brings the young man happiness”