Inventions and Lifestyles

Put the verb in brackets into the correct tense forms

1. We (not be able)                  to gain this power until the current technology (be changed)            .

2. We (tell)           him when he (return)         home from work.

3. I (not pay)              you until I (get)     the pay cheque.

4. I (not talk)               with him until he (apologise)            to me.

5. When the phone (ring)       somebody (pick)       it up.

6. Till the streets (be)     full of cars, I (stay)           here.

Match the computer expressions with their meaning

Choose the correct answer

1. You can't get access to the programme until you                 [will register, have registered, registered] your log in.

2. We had been using land-lines until cellular phones               [have appeared, appear, appeared].

3. They won't return their books until they            [have read, will read, won't read] them all.

4. We will take the dog for a walk when it           [will stop, stops, stopped] raining.

5. Will you explain the problem when she              [have arrived, arrives, will arrive].

6. When I           [have had, will have, have] time, I'll paint the house.

7. I won't get married until I          [will get, get, got] a job

8. When I                   [retire, will retire, will have retired] next June, I will have been working for this company for 25 years

Choose the correct variant "if" or "unless"

1. He will not learn much        [unless, if]he works harder.

2.        [If, Unless]you send a telegram now, he'll get it this evening.

3.        [If, Unless]he starts immediately, he'll arrive by midday.

4. She will come        [if, unless] you ring her up.

5.        [If, Unless]the clock is right, we'll catch the train.

6. I won't write to him        [if, unless]he writes to me.

7. I'll go to the door        [if, unless] I hear the bell.

8. I won't go to the door        [if, unless]I hear the bell.

9. He won't speak French        [if, unless]he goes to France.

10. I'll kill myself        [if, unless]you don't help me.

11. It won't be possible to travel        [if, unless]you haven't got a passport.