(13) The plane took off three hours late because of the snow.

(14) I gave up smoking when I had my first child.

(15) John carried on ballooning until he was 75 years old!

(16) Can you pick me up after the carnival has finished?

(17) We had to call off the firework display because of the wind and the rain.

(18) The politician's visit has been put off until tomorrow because of the protesters.

(19) The government is trying to sort out the problems with the homeless in the city.