Среднее арифметическое чисел

45,5, 127,06, 90,35 и 100,1 равно
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The present perfect and the simple past

4 I (lose) my black gloves. You (see) them anywhere?-No, I'm afraid I .... When you last (wear) them?-

 I (wear) them at the theatre last'night. -Perhaps you (leave) them at the theatre.

5   Do you know that lady who just (leave) the shop? ~ Yes, that is Miss Thrift. Is she a customer of yours?-

Not exactly. She (be) in here several times but she never (buy) anything.

6   He (leave) the house at 8.00. ~ Where he (go)? -

I (not see) where he (go).

7   He (serve) in the First World War. -When that war (begin)? -It (begin) in 1914 and (last) for four years.

8  Who you (vote) for at the last election? -I (vote) for Mr Pitt. -

He (not be) elected, (be) he? -No, he (lose) his deposit.

9  You (like) your last job? -

I (like) it at first but then I (quarrel) with my employer and he

(dismiss) me. -

How long you (be) there? ~

I (be) there for two weeks.

10  I (not know) that you (know) Mrs Pitt. How long you (know) her? -I (know) her for ten years.