Fill each gap with one of the words or word combinations from the box in an appropriate form

Sure, I would be happy to help you with this question!

First, let's take a look at the words given in the box:

1. successfully
2. regardless
3. therefore
4. furthermore
5. on the other hand
6. although

Now, let's examine the sentence and determine the most suitable word or word combination to fill each gap. The sentence is:

"I studied very hard for my exam and __1__, I didn't get the grade I wanted."

Let's analyze each option:

1. "successfully" - This means that something is done or achieved with success. However, in this sentence, it doesn't quite fit because the person didn't get the desired grade despite studying hard. Therefore, "successfully" is not the appropriate word here.

2. "regardless" - This word means without regard or consideration for something. In this sentence, it fits perfectly because it implies that the person didn't get the grade they wanted despite their efforts. So, "regardless" is the correct choice for gap __1__.

3. "therefore" - This word is used to show a logical conclusion or result based on what was mentioned before. However, it doesn't work well in this sentence because it doesn't indicate any connection or consequence of the action of studying hard. Therefore, "therefore" is not the appropriate word here.

4. "furthermore" - This word is used to add more information or to reinforce a point. In this sentence, it doesn't fit because it doesn't add any additional information or support the idea that the person didn't get the desired grade despite studying hard. Therefore, "furthermore" is not the correct choice for gap __1__.

5. "on the other hand" - This phrase is used to introduce a contrasting or opposing point. In this sentence, it fits perfectly because it emphasizes that despite studying hard, the person did not achieve the grade they wanted. So, "on the other hand" is the correct choice for gap __1__.

6. "although" - This word is used to introduce a contrast or concession. In this sentence, it fits perfectly because it shows that even though the person studied hard, they did not achieve the desired grade. So, "although" is the correct choice for gap __1__.

To summarize, the correct answer to fill the gap in the sentence is "although". This word helps convey the idea that despite studying hard, the person did not get the grade they wanted. It clearly demonstrates the contrast between their effort and the result.