Complete the sentences with the correct words (A-C).

1 The light bulb A is

invented by Edison.

B was

C has been

2 In the future, cars A were driven automatically.

B will be

C are

3 The mobile phone _______ created until the 70s. A isn't B won't be C wasn't

4 One day a cure for cancer A will be B was discovered. C has been

5 A new church A will be built in the city right now. C was being