We_____ use mobile phones when the plane takes off
I still remember the college and the teachers ________ I visited in London years ago.
Great changes ________________in Fuyang in the past five years.
.--Have you ________ to Shanghai? --Yes, I___________ there to see my sister last year. She has ____________ Pudong for 2 years.
--__________________Premier Li, the poor people have big houses to live in. --We wish them to live a better life in the future.
–Dave, we will leave in ten minutes. Are you ready? --No, I ____________ our guide book and towels yet.