Напишите на русском помогу с переводом .
Are testing
have tested
did you test...tested
were testing
have tested...are
test...accept
take part
when did our engineers last take part in...
will take part
have taken part
haven't taken part
didn't take
We expected that some of your engineers would start testing the new model immediately.
If none of our inspectors find any defects in the machine's construction, we will take the first lot today.
Will any of our engineers take part in testing the new equipment?
We must tell the sellers that some of the engines sent by the contract 10 don't fit the standards.
We' d like your inspectors to take the pre-test of the machine lot.
Have you already cured the troubles that we discovered during testing?
Because the world have a more of wonderful and beautiful nature
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