Final answer:
The best way to correct the sentence is with option 4) neither fun nor fast. For comma placement, the context needs to be considered to enhance clarity, such as adding a comma after 'well' in the example given. Mixed-construction sentences are improved by eliminating redundancy and ensuring coherence.
Step-by-step explanation:
The best way to correct or improve the sentence 'My trip to the dentist was _________.' is to select the option that conveys that the trip was neither enjoyable nor quick without redundancy. The most appropriate choice is 4) neither fun nor fast. This is because the conjunction 'neither...nor' is used to connect two negative ideas, and it correctly implies that both elements were negative without using extra words.
In review questions on comma usage, the aim is to place commas correctly to ensure the sentence is clear and conforms to standard grammar conventions. For example, 'Though Susan wasn't feel well she went to the store anyway and bought ice cream, pizza, and candy.' This sentence would be clearer with a comma after 'well' to separate the dependent clause at the beginning of the sentence. Hence, it should be: 'Though Susan wasn't feeling well, she went to the store anyway and bought ice cream, pizza, and candy.'
Furthermore, when correcting mixed-construction sentences, the goal is to create a single, coherent thought. For instance, a revision for a mixed sentence like 'For people who have hobbies, they are happier than others.' is simply 'People who have hobbies are happier than others.' This eliminates redundancy and improves sentence flow.