travelling around big cities by taxi can cost a lot of money but it is usually --- to take the underground train to most placesa\ amazingb\ expensivec\ convenientd\ exciting说理由!
问题描述：
travelling around big cities by taxi can cost a lot of money but it is usually --- to take the underground train to most places
a\ amazing
b\ expensive
c\ convenient
d\ exciting
说理由!
答
选择c.convenient "方便的"，其他的不符合句意：
a.amazing 惊人的
b.expensive 贵的
d.exciting 兴奋的
整句翻译：乘出租车绕着城市跑很贵，但是乘地铁去大多数地方通常很方便。
答
选C
打车旅行花费大,但是地铁去许多地方很方便.
虽然这题目里面的转折设置得很奇怪,但是题干要表达的意思应该是替代很贵的出租车的交通工具,所以就抛出了地铁这个概念.那么地铁比出租车的优点不仅仅是便宜,而且去很多地方也很方便.