( )（4）Party members celebrate the day when it ____ founded.A. is B. was C. were
Lucy went a school trip .
It us thirty minutes to climb to the top .
was in front of you last Monday ?
Chinese people invented paper for .
Nine childrentheir grandparents last week .
a school trip .
us thirty minutes to climb to the top .
was in front of you last Monday ?
.
their grandparents last week .
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