The final exam is very important. We must treat it _______.
--- Where is your mother?--- She has ______ to Sichuan on business. She has ______ there four times recently.
It ____ over 10 years since my grandpa _______.
The food in this shop ______ good and ______ very well.
---Do you mind coming to see me tomorrow?---______. I’d like to talk with you.
--- He’s already been back to Australia, _____ he? ---_______________. He is on a visit to Shanghai.