.The last time we had great fun together was _________we were flying kites in Xinghai Square, which will be remembered forever.
One of the tourists ______ from the tour group. That was why the tour guide lost his temper.
After all that hard work, you really____a three-day holiday.
Whether by accident or____, he arrived too late to help us.
The police offered a large___for any information leading to the robber’s arrest.
The earthquake was so terrible that in only 15 seconds a large city lay____.