下图为安徽省平原地区某中学的操场和行道树示意图(晴天8：00前后，东操场大部分被行道树的树荫覆盖)。为充分利用树荫遮阳，6月某日16：00～16：45该校某班同学上体育课的最佳场地是 ( )
A beach house caught fire last night, ______seven students living in it.
____the sketch of Xiao Shenyang made a _____has been known to us all.
That Xiao Shenyang was elected_____model worker of May Day caused ____enthusiastic discussion in China.
----What do you know the _____ of are the pig influenza in humans? ---- usually similar to regular human seasonal influenza .
People go out with masks,________.
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