В данном предложении посмотрим на время, да и на само задание:
Скажем, что в данном случае нет отрицания и тут время Past Perfect!
Значит получаем такое предложение:
He had prepared documents by the time the boss came.
Спасибо
Ответ дал: Гость
his hen cannot fly
his pig hasn`t got a hat
his rabbits isn`t grey
Ответ дал: Гость
i have worked hard to improve my english. joan does not have to go.she can stay here.i am sorry i am late.i had to do the shopping.i think the spacemen have to know english.does she have to read this rule.tom does not have to use the computer. you have to know english to understand people.does mary have to help ann to study english.what time do you have to get up.does your teacher have to correct your homework.
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