For forty years Jane has been ___________ about making the rest of the world understand and respect the life of these animals.

“Did you have any difficulty in yesterday’s homework?”—“No, in fact I found _____.”

_____ do you visit your teacher who taught you years ago? —Once a year.[ ]

. “Haven’t seen you for ages！ Do you still work in Guangzhou？” “_______. It’s two years since I worked there.”

Lisa, we need to clean the kitchen. Could you _________ the trash?— Yes, sure.