сократите 16/18 36/42 12/18 8/56 4/24 26/39 18/20

Test 13. Past Simple or Present Perfect?

1. Tom (didn’t meet/hasn’t met) his sister since he was а child.

2. Olga (lived/has lived) in England last year.

3. I (lost/have lost) my key. I can’t find it anywhere.

4. Look! Somebody (broke/has broken) my pen.

5. How many plays (did Shakespeare write/has Shakespeare written)?

6. Do you know about Jane? She (gave up/has given up) smoking.

7. I’m looking for Mike. (Did you see/Have you seen) him?

8. Your car looks great. (Did you wash/Have you washed) it?

(5-х) в квадрате * у + (5-у) в квадрате* х , если ху=8, а х+у=-9