(2012浙江卷)— I'm going to San Francisco for a couple of days. — . I wish I could get away for a while.
________ is known to us, May 12, 2008 was the day _______ Wenchuan earthquake happened.
They _________ have arrived at lunchtime but their flight was delayed.
China is one of the countries ________ the Mekong River flows.
He was _________by his colleagues though he himself didn’t think he had done anything special.
It was reported that a chemical factory________ last night, which killed thirty workers.