Построить отрицательное и во предложения к подчеркнутым предложениям.
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Объяснение:

1.1 The people of ancient Egypt did not used salt, mint, dried flowers and pepper to create tooth powder.

1.2 What did ancient people use to create tooth powder?

2.1 The first toothpaste did not appeared in 1890 in Great Britain.

2.2 When did the first toothpaste appear in Great Britain?