Underline the stressed syllable​

1)forty plus twenty equals sixty 2)fifty-seven plus five equals sixty-one 3)eighteen plus seven equals twenty-five 4)seventy-eight plus fourteen equal to ninety-two 5)nineteen plus eight equals twenty-seven 6)sixty-eight plus fifteen equal to eighty-three 7)plus forty-two and forty-five and eighty-seven equal 8)eighty-three plus seven is equal to ninety 9)eighty-five plus fifteen hundred  10)ninety-nine plus one equals one hundred 11)plus fifty-three hundred and forty-seven equal 12)twenty-seven plus one hundred and seventy-three equals удачи тебе в учёбе!

1/  has increased - present perfect active voice

2/ are discussing -present continuous active voice

3/started- past simple active voice, had retired -past perfect active voice

4/spent- past simple active voice, was raining- past continuous active voice

We have carefully studied (Participle II - часть сказуемого) all the technical data that we got from you

The machine tool advertised(Participle II - определение) by Brown and Co will be in great demand on the   market.

By 5 o’clock they had cleared (Participle II - часть сказуемого) up all the points in the firm’s offer.  

Peter saw her at the University library when he was working (Participle I - часть сказуемого) for his final examinations