10-0Objectives & Sequence
10-1Last Weekend
10-1Who Is This?
10-1Adjectives (Opposites)
10-2Common Verbs
10-1Past of 'To Be'
10-2Simple Past
10-3Time Expressions
10-1Ten Awe-Inspiring Man-Made Wonders
10-1Find Who … When They Were Young.
10-1What Did They Do?
In the simple past, time expressions can go at the beginning of the sentence or at the end. 一般过去时中的时间状语可以位于句首，也可以放在句尾。
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