"There isn't __ water left in the \( \quad{ }^{*} 1 \) คะแนน bottle." a) Any b) A c) A lot of d) Many

The correct choice to fill in the blank is "any." This is because we use "any" in negative sentences to indicate a lack of something. So the complete sentence reads: "There isn't any water left in the bottle," clearly stating that the bottle is empty. Now, if we toss around the options like a game of trivia, we find that "a" often refers to a singular countable noun and doesn't fit here. Meanwhile, "a lot of" suggests a large quantity, and "many" is used with countable nouns, which doesn’t work with the uncountable noun "water." So, "any" is the winning word!