Have you ever done volunteer work?

Is there a cam?- There is one.

Have you written the essay yet? - Yes, I wrote it yesterday.

Minh's sister will fly to Da Nang tomorrow.

Complete the sentences with the correct form of the verbs in brackets.

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Put the verbs in parentheses into the simple past or present perfect.

Put the verbs in parentheses into the correct form.

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Write the correct passive form of the verb in parentheses: This computer has been used for two years.