Add 's to show that one company owns something. Do not use an apostrophe to make a plural, and the possessive "its" has no apostrophe.
第2题,共19题
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答案: B. It's time to clean the furnace and change its filter.
"It's" means "it is." "Its" (no apostrophe) shows ownership, like "his" or "her."
第3题,共19题
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答案: B. They're bringing their tools over there.
"They're" means "they are," "their" shows ownership, and "there" is a place.
第4题,共19题
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答案: B. Because the bus was late again.
A sentence beginning with "Because" needs another part to finish the thought. On its own, it is a fragment.
第5题,共19题
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答案: B. canada
Canada Day is the name of a holiday, so both words need capitals. Seasons such as summer are not capitalized, and "aunt" after "my" is not a name.
第6题,共19题
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答案: A. Bring three things: a pen, your ID and a snack.
Use a colon after a complete sentence to introduce a list. Do not put a colon right after a verb such as "Bring."
第7题,共19题
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答案: D. therefore
The second part is a result of the first, so a cause-and-effect transition like "therefore" fits. "However" would show a contrast.
第8题,共19题
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答案: B. Change "work" to "works"
The subject "Each volunteer" is singular, so it needs the singular verb "works."
第9题,共19题
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答案: C. End the sentence after "vegetables"
Sentence 3 is a comma splice: two complete sentences joined only by a comma. A period (or a semicolon, or ", and") fixes it.
第10题,共19题
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答案: D. Change "your" to "you're"
The sentence means "if you are interested," so it needs "you're." "Your" shows ownership. Months such as May take a capital.
第11题,共19题
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答案: D. Change "need" to "needs"
The subject is "Each," which is singular, so the verb is "needs." The words "of the drivers who use" come between them; "drivers who use" is already correct.
第12题,共19题
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答案: B. Two sentences are joined by only a comma
"Permits can be picked up from Janet in reception" and "she is there from 8 a.m. to 4 p.m." are both complete. Joining them with only a comma makes a comma splice.
第13题,共19题
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答案: D. It keeps the focus on the action and sounds polite
The passive voice puts the action first and leaves out the doer. In memos, this keeps the focus on what to do and avoids sounding bossy.
第14题,共19题
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答案: C. It seems the waiting room walked into the clinic
This is a dangling modifier. The opening phrase must describe the word right after the comma. A fix: "Walking into the clinic, I saw that the waiting room was full."
第15题,共19题
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答案: C. The receptionist asked me to fill out a form, show my health card, and wait.
Items in a list should have the same form (parallel structure): "to fill out," "show" and "wait."
第16题,共19题
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答案: A. "She" could mean the sister or the receptionist
A pronoun must point clearly to one noun. Here "she" could mean either woman, so the reader cannot tell who will be late.
第17题,共19题
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答案: A. Short sentences make the message quick and easy to remember
Short sentences are fast to read and stand out. On signs and posters, they help the main message stick.
第18题,共19题
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答案: D. They tell the reader directly what to do
These are commands (the imperative). They are clear and direct, which is why instructions and procedures use them.
第19题,共19题
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答案: C. To stress how long the wait felt
Writers sometimes break rules on purpose. Repeating short fragments slows the reader down and makes the wait feel long.