Change the sentences using inversion.
A
1. We have seldom heard such nonsense!
Seldom
2. You shouldn't open the door to strangers under any circumstances.
Under no
3. I understood that I had made a mistake only when I came home.
Only when
4. You will never again watch TV at such a late hour!
Never again
5. Artists are rarely appreciated when they are still alive.
Rarely
6. We couldn't talk freely until the rest of the guests had left.
Not until

7. They knew very little then what they were going to do.
Little

B
1. If she insists, ask her to give all the reasons.

2. If there are many problems, we are always ready to help!

3. If I get the job, I’ll invite you to a restaurant

4. If you decide to sell your house, I’ll be glad to buy it!

5. If you see a good dictionary of slang, buy on for me.

A:

1. Seldom have we heard such nonsense!
- The adverb "seldom" is placed at the beginning of the sentence to create an inverted structure. This emphasizes the rarity of the event.

2. Under no circumstances should you open the door to strangers.
- The prepositional phrase "under no circumstances" is moved to the beginning of the sentence to form an inverted structure. This emphasizes the strong prohibition.

3. Only when I came home did I understand that I had made a mistake.
- The adverbial clause "only when" is inverted with the subject "I" to create a more dramatic effect. This highlights the realization of the mistake after coming home.

4. Never again will you watch TV at such a late hour!
- The adverb "never again" is placed at the beginning of the sentence to create an inverted structure. This emphasizes the strong prohibition for watching TV at a late hour.

5. Rarely are artists appreciated when they are still alive.
- The adverb "rarely" is moved to the beginning of the sentence to form an inverted structure. This highlights the lack of appreciation for artists while they are alive.

6. Not until the rest of the guests had left could we talk freely.
- The adverbial phrase "not until" is inverted with the subject "we" to create a more dramatic effect. This emphasizes the condition for being able to talk freely.

7. Little did they know then what they were going to do.
- The subject "they" is moved to the beginning of the sentence to form an inverted structure. This emphasizes their lack of knowledge about their actions.

B:

1. Should she insist, ask her to give all the reasons.
- The auxiliary verb "should" is placed at the beginning of the sentence to create an inverted structure. This emphasizes the condition for asking her to give all the reasons.

2. Should there be many problems, we are always ready to help!
- The auxiliary verb "should" is moved to the beginning of the sentence to form an inverted structure. This emphasizes the condition for being ready to help.

3. Should I get the job, I’ll invite you to a restaurant.
- The auxiliary verb "should" is placed at the beginning of the sentence to create an inverted structure. This emphasizes the condition for inviting the listener to a restaurant.

4. Should you decide to sell your house, I’ll be glad to buy it!
- The auxiliary verb "should" is moved to the beginning of the sentence to form an inverted structure. This emphasizes the condition for being glad to buy the house.

5. Should you see a good dictionary of slang, buy one for me.
- The auxiliary verb "should" is moved to the beginning of the sentence to form an inverted structure. This emphasizes the condition for buying a good dictionary of slang.