Can I say,<br/><br/>(a) The sky was dark and it started to rain. The bus stop was crowded with people <u>who wanted to (take a ) shelter. </u><br/><br/>(b) The rain became heavier. The t<u>raffic was at a standstill</u>. A<u>ll of vehicles were moving slow</u>ly. <br/><br/>(c) Some pedestrians wore raincoats. They <u>walked carefully because the road was slippery and wet. </u>