During the construction of skyscrapers, cranes are used to （ ）building materials to the upper floors.

A.toss B.tow C.hoist D.hurl

The United States is comprised of 48 contiguous states occupying the midcontinent, Alaska at the northwestern extreme of North America, and the island state of Hawaii in the mid-Pacific Ocean.

疲劳是人们向医生、朋友和亲人最常抱怨的问题之一。或许你认为在这个拥有各种节省体力的装置和方便的交通设施的时代。很少有人会有理由感到如此疲劳。然而，今天与用手捆干草，用搓衣板洗衣服的昔日相比，抱怨疲劳的人也许更多了。据医生们说，疲倦更可能是由于过少的活动所致，而不是过多的活动所引起的。情绪问题和烦恼，特别是忧郁和焦虑，显然是长期疲劳最常见的原因。

In describing the grandeur and sublimity of this country, the Haitian (海地人)may well enough to adopt the poetic description of their own proud country.

These are signs that the presidency will attempt to put environmental issues on high its （ ）.

By the time that dispute was resolved, relations between service and management had been poisoned.