Passive voice in Bioengineering -Present perfect and past simple

Select the option with passive voice in Present Perfect:

• Technologies have involved nanoscale structures for many years

• Concepts of nanotechnology have been considered more important than a definition

• Nanotechnology has great impact on today's world

• New innovations were highlighted in the meeting

Which option expresses passive voice in past simple:

• The bioengineer was working in a new experiement

• The studentswere trying to figure out the formula

• The new methods were found out by a professional

• She was carrying out a new study

Tissue engineering has been _____ by researchers

• study

• studies

• studied

The medical techniques ____ been enriched by nanotechnology

Which option is correct? Tissue engineering has not been ______ with bad cells

• developed

• develop

• developt

Was the patient ______ by the experiment? (Affect)

Why is this sentence incorrect? The scientists was surprised by the results of the expetiment

Select the correct option. She has been _____ by the new findings

• surprise

• surprised

• surprises

Write the correct form of the verb: The bioengineer was ______ with the innovations on tissue engineering (fascinate)

The students ____ taught the implications of nanotechnology