When my grandfather retired(退休) at the age of 60 he took a sea around the world which h

问题补充：

When my grandfather retired(退休) at the age of 60, he took a sea around the world, which had been his dream since his childhood.

A. travel

B. trip

C. voyage

D. journey

答案：

A. travel

B. trip

(答案→)C. voyage

D. journey

解析：句意：当我祖父60 岁退休时，他乘船周游了全世界，这是他从孩提时就有的梦想。travel 多用于长途国外旅行上 travel abroad；voyage多用于海上旅行；trip一般指从城市到郊区的短途旅行，一天之内能回来的；journey 则是较长的陆地长距离旅行。故选C。

考点: 考查名词的用法。