Choose the correct answer.

He made _______ an unforgivable mistake that it cost him his marriage.

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When we were in Da Nang, we spent a lot of time _______ around and looking at the ancient temples, bridges and houses.

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Jessica is _______ a brilliant woman that everyone admires her.

The city’s public transportation system is such affordable that many residents prefer using it.

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The city is trying to improve the _______ so that drivers can see them better.

Give the correct form of the word in brackets to complete the following sentence.

I am going to visit Da Nang so can you tell me what the greatest _______ in Da Nang are? (attract)

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To reduce traffic jams, the city decided to _______ certain types of vehicles traveling into the city center during specific hours.

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When my children _______, I will teach them how to study English.