The news came as quite a shock to us _____ a ship with 82 passengers on board sank near the north coast.

I think students should have mobile phones to call their parents at school..—_______. They often use them to play games instead.

I prefer watching TV to musicevery day.

The cook tried ________ the duck in beer instead of water. [ ]

Stephen Hawking believes that the earth is unlikely to be the only planet ________ life has developed gradually[ ]