单选题Light from the Sun and distant stars traverses a vacuum in space.
单选题Boredom is a _______ in that it may lead people to frustration and even to crime when people find nothing meaningful to do.
单选题The two words petrol and gasoline are ______.
单选题The King's eldest son is the ____ to the throne.
单选题If the struggle for a sustainable society_____, we must have some vision of what we are aiming for.
单选题Until the late 18 th century, craftsmen were ____ made toys, mastering their trade and carefully shaping each product hours by hand.
单选题He endeavored to adopt a positive but realistic attitude toward life.
单选题In the dark they could not see anything clear, but could_____.
单选题In terms of the meaning expressed by words, they can be classified into______.
单选题The way in which the word “speechless” is formed is called as ____.
单选题It's such a ____ to do the shopping every day !
单选题______studies the internal structure of simple propositions.
单选题______is concerned with the internal organization of words.
单选题The function of the sentence “A nice day, isn’t it ?” is _____.
单选题_______does NOT belong to semantic changes.
单选题_______a larger percentage of its gross national product on defending its coasts from rising seas than______.
单选题When World War I broke out in 1914, The Becton Dickinson Company, _______ importing German elastic bandages and started making them in the USA.
单选题Sunlight during dawn or dusk comes in at a lower angle, and since it cannot escape the dust and pollution of the atmosphere ____, the sky turns orange and then red.
单选题“Big-small” is a pair of ____antonyms.
单选题Architects involved in big projects must study ____ about the outside world before conceiving an idea.