I’ll ask the teacher about the attributive clause I’m very puzzledabout it—That’s just ________ most of our classmates have doubt

the office work, he came to thesitting room and relaxed a while

Can you think of some cases___________students know clearly he should listen to the teacher but can’t do that ?

Have you heard of Earth Day—Yes. The first Earth Day ____ in 1970 to educate us to protect our planet.

Could you tell me __________________________________