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熟練掌握常用標(biāo)點符號的基本用法,尤其要正確使用逗號和分號。 時態(tài)問題 描述圖畫用進行時:doing Asis shown in the picture, there is sb doing sth, suggesting sth/with sb doingsth. 描述圖表用過去時:完成時 Asis illustrated by the chart, there was an obvious increase/a dramatic decreasein the numbe