Составить предложения с этими элементами At least
to be employed in companies
to spend a night on board ship
to carry on a research​

The tea needs to steep for at least five minutes.

The woman refused to be employed full-time and was laid off.

After one of the passengers had been diagnosed with the coronavirus, we all had to spend a night on board ship.

We continue to carry out research to produce more effective medicines and a vaccine.

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