填空题改“medicines”为“medicine”
单项选择题In a true sense, plateways are the earliest and most primitive railways invented by ______.
单项选择题Ernest Hemingway was most famous for ______.
单项选择题Gender is mostly a category of the noun and pronoun. In English, the gender distinctions are determined ______; in French, they are ______.
单项选择题Apart from the majority of countries, the U.K. has ______ to form the whole part of its constitution.