.Unfortunately, it was in Yushu County, ______ a 7.1-magnitude earthquake happened on April 14, 2010, ______ a large number of students were buried inside damaged schools.
Over the past decades, sea ice_______ in the Arctic as a result of global warming.
Our teacher suggests English every day to improve our spoken English.
— How about Thursday morning? Say, 10 o’clock? — OK. I’ll be expecting you then.
His sister left home in 1998, and_______ since.
— I went to see a film yesterday. — Oh, did you? .