1. await VS wait
意：If you await someone or something, you wait for them.
例：Very little was said as we awaited the arrival of the chairman.
意： You spend some time doing very little, because you cannot act until that thing happens or that person arrives.
例：I walk to a street corner and wait for the school bus.
2. site VS cite VS sight
意：a piece of ground that is used for a particular purpose or where a particular thing happens.
例：I was working as a foreman on a building site.
意：you quote it or mention it, especially as an example or proof of what you are saying.
例：She cites a favorite poem by George Herbert.
意：n. ①ability to see; ②something that you see.
例：①My sight is failing, and I can't see to read any more.
②The practice of hanging clothes across the street is a common sight in many parts of the city.
3. its VS it’s
意：“its” is the possessive form of “it”
例：He held the knife by its blade.
意：“it’s” means “it is.”
例：It's the best news I've heard in a long time.
4. their VS there VS they’re
意：“Their” is the possessive form of “they.”
例：Janis and Kurt have announced their engagement.
意：used as the subject of the verb "be" to say that something exists or does not exist, or to draw attention to it.
例：There are temporary traffic lights now at the school.
意：“They’re” means “they are.”
例：People eat when they're depressed.
5. reduction VS reduce VS deduct
意：the act of making something smaller in size or amount, or less in degree.
例：We found that there’s a trend towards the reduction of exports by China.
意：make it smaller in size or amount, or less in degree.
例：It reduces the risks of heart disease.
意：subtract an amount from the total.
例：The company deducted this payment from his compensation.
6.fair VS fare
意： Something or someone is reasonable, right, and just.
例：I wanted them to get a fair deal.
意： the money that you pay for a trip that you make, for example, in a bus, train, or taxi.
例：He could barely afford the fare.
7. than VS then
意：use it after a comparative adjective or adverb in order to link two parts of a comparison.
例：Children learn faster than adults.
意：①one thing happens after another, or is after another on a list;②at a particular time in the past or in the future.
例 ：①Add the oil and then the scallops to the pan.
②He wanted to have a source of income after his retirement; until then, he wouldn't require additional money.
8. maintain VS sustain
意：continue to have it, and do not let it stop or grow weaker.
例：After the divorce, their father still maintained close contact with the boys.
意：continue it or maintain it for a period of time.
例：He has sustained his fierce social conscience from young adulthood through old age.