【正文】 A Though / Although B though C though A Both “although” and “though” can be used as conjunctions to introduce a subordinate clause of concession (讓步狀語從句) in which you mention something which contrasts with what you are saying in the main clause. B “Though” is sometimes used as an adverb. When used as an adverb, it is not used at the beginning of a clause. “Although” cannot be used as an adverb. C When a clause beginning with “though” ends with a plement or adverb, you can bring the plement or adverb forward to the beginning of the clause. However, when a clause beginning with “although” ends with a plement or adverb, you cannot move the plement or adverb to the beginning of the clause.2 A reply / answer B answer C replying Both “answer” and “reply” can be used as nouns and verbs. With a noun object we use the verb “answer” or “reply to”. . We must answer / reply to these questions as soon as possible.3 A speaks B speak C talking D speak / talkYou say that someone “speaks” or “can speak” a foreign language. If someone is giving a speech, you say they are “speaking”. If two or more people are having a conversation, you say that they are “talking”. You do not say that they are “speaking”. If you “speak to / talk to” someone, you have a conversation with them. 4 A injured / hurt B hurt / injured C wounded / injured D woundsYou can be “wounded” or receive a “wound” from any attack in which a gun or sharp instrument such as a sword or knife is used. You can be “hurt” or “injured” or receive an “injury”, a) when any other weapon such as a heavy stick or bomb is used, b) in an accident. Both “wound” and “injure” are more serious than “hurt”. Note that “hurt” can be used as an intransitive verb but not “wound” or “injure”. . It hurts when I try to move my leg.5 A houses B apartment, apartmentsA “house” is a building for people to live in and often has more than one level. An “apartment” in American English or a “l(fā)at” in British English refers to a set of rooms within a larger building, usually on one level.6 A aside B apart C aside / apartBoth “aside” and “apart” can be used as adverbs. “Aside” means “away or to the side”. “Apart” means “separated by a distance”. he phrase “aside from / apart from” means a) except for, b) in addition to.7 A requests B requested C demanded D demandsBoth “request” and “demand” mean “ask for sth. or ask sb. to do sth.”. “Request” is more formal and stronger than “ask (for)”. “Demand” is even stronger. If you “demand” something, you feel strongly that you have the right to get it, and will not take “no” for an answer. Both “request” and “demand” can be used as a verb or as a noun. A “request” for something is a polite demand for it.8 A border B boundaryThe word “border” refers to the dividing line between two countries or states or the land near that line. A “boundary” is a precise line marking the outer limits of an area. 3 Roommates and FriendsSTEP ONESampleI