1 .Mr Scot phoned you during your absence.
2.They shouted_for help from the window of the burning hotel.
3.The surgeon was performing __a dangerous operation when the alarm went out.
4.He was not a political figure -but a religious one.
5.The pilot checked the instruments __ before he took off.
6.He looked calm,but actually ___he was very nervous.
7.The charge for the delivery is additional _______
8.In order to improve the traffic,a new bridge has been preserved__.
9.This machine is driven by electricity.
10.They organized a climbing expedition to Mt.Everest.