Rewrite the sentences using the infinitive or-ing form, as in the example

1. It’s difficult to learn a foreign language.

Learning a foreign language is difficult.

2. Gathering and analyzing up-to-date information is hard.

3. It is important to activate any security devices when you leave your car unattended.

4. Preventing serious organized crime is crucial.

5. It is vital to be aware of your surroundings and stay alert to what’s going on around you.

6. Avoiding dark or deserted areas late at night is important.

7. It’s easy to get lost in this city.

8. It’s risky to leave your phone on tables in pubs or restaurants.

9. It's dangerous for a woman to walk alone at night.

10. Maintaining law and order is impossible without public support.

Join the sentences using who(m), which or whose as in the example.

1. I am reading a detective novel. It is very interesting.

I am reading a detective novel, which is very interesting.

2. The Metropolitan Police Service is the oldest police force in continuous service. It was established in 1829.

3. Jurors will be paid $40 a day. Their identities will be kept secret.

4. Mr Twister is retiring. His son is a police constable.

5. Robert Peel established the first official British police. He was prime minister from 1834 to 1835 and 1841 to 1846.

6. My neighbors’ car was stolen yesterday. It was very expensive.

7. I discussed it with my brother. He is a lawyer.