My grandmother ______a lot of changes in Tianjin since she came here .

Hi, guys. How was your party yesterday?—Wonderful! We had a big meal and enjoyed __________.

How long do you usually _____on your homework everyday?

I’ll do it better if the teacherme another chance.

Shanghai Waihuan Tunnel is already open to traffic, so it will take us ______ time to go to Pudong International Airport.