"Paltry" means incredibly small and meaningless. "Meager" is the best choice because it also means worthless or not enough. 

The word "lucrative" means profitable or moneymaking. The best choice is "advantageous" because it means profitable or useful.

"Valuable" is defined as worth a great deal of money. Since "expensive" things are highly priced, "expensive" is the best answer choice. "Worthless" is an antonym of "valuable."

The word "faulty" is an adjective that means—unsurprisingly—having a fault or faults. A "faulty" tire is one that does not spin correctly, and a "faulty computer" is one that does not work as it should. You might get confused looking at the options and think that perhaps "trembling" is a good good answer. A "fault line" is an imperfection in the earth's crust, leading to earthquakes at times. However, the word "faulty" mere indicates imperfection or flaws. Therefore, "flawed" is the best answer.

"Elite" means having superlative qualities. "Best" means better than all other options. Given how similar these words' meanings are, "best" is the synonym for "elite."

The word “pathetic” means so embarrassing that you make people feel bad for you, so "pitiful" is the correct answer, as it also means making people feel bad for the person or thing described.

Something that is “toxic” is poisonous and would make you sick or kill you if you consumed it. The word “medicinal” is used to describe something meant to help you feel better when you are sick.

As foolish as it might seem, think of "remarkable" in a very literal sense (at least at first): Something about which remarks are made. It is "remark-able." We say that something is "remarkable" when it is out of the ordinary, when it stands out from the crowd. If something is just normal, we do not make many remarks about it. However, when something is extraordinary, we talk about it and discuss it. While it might seem that this would be synonymous with "fame," being remarkable really is about being extraordinary or amazing, and one does not necessarily need to be extraordinary or amazing to be famous. Therefore, "amazing" is the correct answer.

It is important not to "overdo" the meaning of your word. When we say that something is "excellent," we mean to say that it is very good. This does not, however, mean that it is perfect. Therefore, you should not choose "perfect" or "flawless." Something that is "superb" is something excellent. You should know this word from the clearly related word "super." They are quite similar in meaning.

The word "solemn" is used to describe something that is important and serious. For example, we can say, "The crowning of the Queen was a solemn ceremony, full of long speeches, many prayers, and having many important guests present." Thus, it means "serious" as in important. We use "serious" in this manner when we say things like, "It was a very serious surgery that would hopefully save his life if performed well."