I. Circle the mistake in each sentence and correct it:

1. Mistake: C. will Correct: would Explanation: The sentence is a conditional sentence type 1, which uses the present simple tense in the "if" clause and the future simple tense in the main clause.

2. Correct: The sentence is correct.

3. Mistake: C. constructed Correct: to construct Explanation: The verb "teach" is followed by a direct object ("her") and an infinitive phrase ("to construct a logical argument").

4. Mistake: B. would Correct: will Explanation: The sentence is a conditional sentence type 1, which uses the present simple tense in the "if" clause and the future simple tense in the main clause.

5. Mistake: C. hardest Correct: harder Explanation: The comparative form of "hard" is "harder." The sentence uses a comparative structure with "the more... the harder... "

VIII. Rewrite each sentence so that it has a similar meaning to the first one:

1. The street is packed with people and cars during rush hour.
2. Unless you manage your time properly, you may find it hard to finish your tasks.
3. I don't know how to get to the swimming pool.
4. The dirtier the air gets, the worse people's health becomes.
5. You must follow our instructions or you won't lose weight quickly.

VIII. Rewrite the sentences as the given cues:

1. The bigger the apartment is, the higher the rent is.
2. The sooner we set off, the sooner we will arrive.
3. The better the joke is, the louder the laughter is.
4. The fatter she gets, the more tired she feels.
5. The older he is, the less he wants to travel.  

VII.

1. C. well

2. A. the

3. B. how she

4. C. a logical argument

5. D. early

VIII.

1. The street is full of people and cars during rush hour. (This is already packed; no change needed)

2. Unless you manage your time properly, you may find it hard to finish your tasks.

3. I don't know how I can get to the swimming pool.

4. I don't know how I can get to the swimming pool.

5. It is necessary to follow our instructions; otherwise, you don't lose weight quickly.

IX.

1. The bigger the apartment is, the higher the rent is.

2. The sooner we leave, the sooner we will arrive.

3. The better the joke is, the louder the laughter is.

4. The fatter she gets, the more tired she feels.

5. The older he gets, the less he wants to travel.