Hi, Mike. Have you been to Disneyland in Shanghai—Yes. I _______ there last month.

_____ have proved great adventures,but we have done the greatest march ever made in the past ten years

－Jim, how about keeping a dog as a pet－Good idea! but I prefer to have a cat. The dog is _____ to look after.

This river has changed its course many times. It _________ always located where it ________ at present.

Mr Johnson, what are teachers supposed to do for the students?—As teachers, we feel ________ our duty to teach our children to be good wherever we are.[ ]