这家公司必须采取有效措施来避免类似问题。（take measures）

澳大利亚是少数几个沿左侧开车的国家之一。(one of...,where)

学校已选出最好的乒乓球运动员。(pick out)

我说这些都是为了你。

参考答案 1.this company has to take effective measures to avoid similar problems. 2.australia is one of the few countries ｗhere cars driver on the left side. 3.the school has picked out the best ping-pong/table tennis player. 4.it was all for you that i said this.