—Do you still remember the days ______ we spent in the countryside ten years ago?—Yes,I'll never forget the experience.
At the railway station, the mother waved goodbye to her daughter until the train was ________.
—When does your plane take off? —At 3:00 p.m. tomorrow. I’ve just called the airport to ________ it.
The new teacher made a good ________ on the students by her rich knowledge and humorous talk.
—How much do you know about the 3D film technology? —A little. Not until _______ the hot movie Avatar _______ some about it.
To enjoy the scenery, Bob would spend a long time on the train ________ travel by air.