计算：

（1）|﹣2|﹣（2﹣π）⁰+${\left(\frac{1}{3}\right)}^{-1}$+（﹣2）³

（2）（﹣2x³）²•（﹣x²）÷（﹣x）²³

（3）（x+y）²（x﹣y）²

（4）（x﹣2y+3z）（x+2y﹣3z）

 —Excuse me. Is it my turn now?
 —Not yet. Please wait on the chair ______your name is called.

下列各句没有语病的一句是(      )

--             the weather like in Guangzhou? -- It's sunny.