Change the sentences using the tenses given in brackets. If necessary, add adverbs of time. She is introduced to the teacher. (Past Simple) She was introduced to the teacher yesterday. He greeted his great-grandfather warmly. (Present Simple). They will order a few bananas to eat. (Present Simple). It has just happened. (Past Simple). He has ordered lots of flowers for her. (Future Simple). They are introducing themselves and taking their seats. (Present Perfect). The bou usually does his homework after dinner.(Present Continuous). Money will be sent to him by his relatives. (Present Simple)

She is introduced to the teacher. (Past Simple)
→ She was introduced to the teacher yesterday.

He greeted his great-grandfather warmly. (Present Simple)
→ He greets his great-grandfather warmly.

They will order a few bananas to eat. (Present Simple)
→ They order a few bananas to eat.

It has just happened. (Past Simple)
→ It just happened.

He has ordered lots of flowers for her. (Future Simple)
→ He will order lots of flowers for her.

They are introducing themselves and taking their seats. (Present Perfect)
→ They have introduced themselves and have taken their seats.

The boy usually does his homework after dinner. (Present Continuous)
→ The boy is usually doing his homework after dinner.

Money will be sent to him by his relatives. (Present Simple)
→ Money is sent to him by his relatives.