1 I regret not saving more money when I did my holiday
job.
WISH
I ……………………… more money when I did my holiday job.
2 It isn’t necessary to hand in your essays before
Monday.
HAVE
You ……………………… hand in your essays before
Monday.
3 Tom speaks such good Spanish because he lived in
Madrid when he was a child.
SO
If Tom hadn’t lived in Madrid when he was a child, he
……………………… well.
4 I’m sorry, but using cameras is forbidden in here.
MUSTN’T
I’m sorry, but you ……………………… your camera in here.
5 It was a bad idea for me to eat all that pizza.
SHOULDN’T
I ……………………… all that pizza

1. I regret not saving more money when I did my holiday job.
WISH
I wish I had saved more money when I did my holiday job.

Explanation: The original sentence expresses regret for not saving enough money in the past. By using "wish" in the past perfect tense ("had saved"), the speaker expresses a desire to change the past and save more money.

2. It isn’t necessary to hand in your essays before Monday.
HAVE
You don't have to hand in your essays before Monday.

Explanation: The original sentence states that it is not necessary to hand in essays before Monday. By using "have to" in the negative form, the sentence expresses that there is no obligation or requirement to submit the essays before Monday.

3. Tom speaks such good Spanish because he lived in Madrid when he was a child.
SO
If Tom hadn’t lived in Madrid when he was a child, he wouldn't speak Spanish so well.

Explanation: The original sentence states that Tom speaks Spanish well because he lived in Madrid as a child. By using "so" and the conditional structure, the sentence shows the implied consequence of Tom not living in Madrid - he wouldn't speak Spanish as well.

4. I’m sorry, but using cameras is forbidden in here.
MUSTN'T
I'm sorry, but you mustn't use your camera in here.

Explanation: The original sentence states that using cameras is forbidden. By using "mustn't," the sentence emphasizes the strong prohibition against using a camera in the mentioned place.

5. It was a bad idea for me to eat all that pizza.
SHOULDN'T
I shouldn't have eaten all that pizza.

Explanation: The original sentence reflects regret for eating too much pizza. By using "shouldn't have" in the past perfect form, the speaker expresses a belief that it was not a good decision to eat all the pizza in the past.