Avatar is an interesting film. I______ it twice already.

In the past few years, Chinese scientists ________ great success in the field of space flight

During the examination we are required to stay in our seats, keep our eyes on our work, to anyone

Not until the train pulled into the station thathis suitcase was gone.

Can you meet me at the airport at 9 o’clock next Monday— I’d like to, but I ________ an English class then.