【推荐1】He likes travelling, because ________ about the world.
他喜欢旅游，因为他渴望更多地了解这个世界。

【推荐2】他高兴地唱着歌，用天真而又好奇的眼睛注视着周围的一切。
Singing happily, he ________________.

【推荐2】从车窗往外望去，加拿大巍峨的山脉和辽阔的森林尽收眼底。
________ ________ the train window , the mountains and forests of Canada looked ________.

【推荐3】这个品牌的蛋糕畅销的原因是其价廉味美，而且顾客在各个商店都买得到。(available)
The reason why this brand of cake sells well is ___ it’s cheap and delicious, and ___ ___ ___ ___ customers in every shop.