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【单选题】
Mr. Rob is still having difficulties_____ the computer started and would like to send one of your technicians to his house to fix it.A.
get
B.
to get
C.
getting
D.
gotten
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【简答题】阅读短文，判断正(T)误(F)。 There are four seasons(季节)in a year. They're spring, summer, autumn and winter. In spring it's warm. People(人们)often fly kites. And people often go swimming in summer, because it's ...