* Increasing vocabulary means having a wider range of words to use. This leads to more varied and descriptive language, making your writing more engaging and interesting.
Let's look at why the other options are incorrect:
* a) write longer sentences: While a larger vocabulary might allow you to write longer, more complex sentences, it's not a direct result of having more words. Sentence length is a matter of style and purpose.
* c) spend less time on revision: A larger vocabulary might make your writing more concise, but it doesn't necessarily mean less revision is needed.
* d) be able to reading: This option doesn't make sense in the context of vocabulary. Reading ability is separate from knowing a lot of words.
In summary: A larger vocabulary allows you to express yourself more effectively and creatively, leading to more lively and engaging writing.