You were out when I dropped in at your house. — Oh, I （ ） for a friend from England at the airport. （A）was waiting （B）had waited （C）am waiting （D）has waited
The crazy fans （ ） patiently for three hours and they would wait till the movie star arrived. （A）were waiting （B）had been waiting （C）had waited （D）would wait
I called you at 4:00 yesterday afternoon, but no one answered. — Sorry, I （ ） with my friends at that time. （A）swim （B）swam （C）will swim （D）was swimming
Are you going to the bank, Laura? — No, I （ ） to the bank already. （A）have been （B）have gone （C）am going （D）had been
So far this year, many new houses （ ） in Wuhan with the help of the government. （A）build （B）are built （C）will build （D）have been built
