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【简答题】
Complete the narrative paragraph. Use the time-order signals from the box. Capitalize and punctuate them correctly. Use each signal once. after our trip to the salon later after that next at 9:00 A.M. on the morning of my birthday at the beginning of the party several hours before the party finally then
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皮皮学刷刷变学霸
举一反三
【单选题】Junk messaging has been a headache for years, ＿＿the action taken by the authori-ties has not yet produced the results expected
A.
as
B.
but
C.
so
D.
before
【简答题】（）是把地球假设为刚体不变，均匀旋转的球体或椭球体，并在一定范围内测绘地球和研究其形状、大小及外部重力场。