The aim of the trial operation of Shanghai Expo was to _______ problems, if any, so that the organizers could make changes accordingly.
—Did you listen to the report last Friday? —Yes, it was about the shortage of immigrant workers. That was the first time I ________ about the subject.
—How long have you been in this office? —Just a few minutes.My cousins ________ here together with me.
—Why don't we choose that road to save time? —The bridge to it ________.
I had wanted to take the career of being a model, but I ________ not good at dealing with constant media attention.
—Alas! I have left my key to the office in my car. —Don't worry. I ________ it for you. Wait a minute.