sentence transformation

[wynnmyintuu]

Please point out my mistakes in my answers to the following stylistic transforms
1
Someone stole my handbag while we were playing tennis.
During the time we were playing tennis, Someone stole my handbag

2
The train journey from BristoltoLondontook only 90 minutes.
It was only 90 minutes from Bristol to London by train.
3
Don't press the alarm button unless there's a real emergency.
The alarm button must not be pressed unless there's a real emergency.

4
Without your sound advice, I would never have made such a good investment.
If it hadn't been for your sound advice, I would never have made such a good investment.

5
I'm not friendly with him; in fact, I hardly even know him.
Far from being friendly with him, I hardly even know him.

[bhaisahab]

Please point out my mistakes in my answers to the following stylistic transforms
1
Someone stole my handbag while we were playing tennis.
During the time we were playing tennis, someone stole my handbag

2
The train journey from BristoltoLondontook only 90 minutes.
It was only 90 minutes from Bristol to London by train.
3
Don't press the alarm button unless there's a real emergency.
The alarm button must not be pressed unless there's a real emergency.

4
Without your sound advice, I would never have made such a good investment.
If it hadn't been for your sound advice, I would never have made such a good investment.

5
I'm not friendly with him; in fact, I hardly even know him.
Far from being friendly with him, I hardly even know him.

They are all OK.