1. Lots of people are killed in airplane accidents 2. In big cities, there are too many automobiles on the streets and highways 1.许多人在空难中遇难 2.在大城市的街道和高速公路上,汽 的数量太多⚫ 1 ．Lots of people are killed in airplane accidents． ⚫ 2 ．In big cities，there are too many automobiles on the streets and highways． 1．许多人在空难中遇难。 2．在大城市的街道和高速公路上，汽车 的数量太多