Complete the sentences with the correct passive form of the verb. Pay attention to the tense.

Present Simple New applications >invent< each month.

Present Continuous A student >ask< about his scientific invention by a journalist.

Present Perfect Proof of the experiment >put< up around the town.

Past Simple The lion >take< away in a van.

Past Continuous Volunteers didn't realize they >film<.

Past Perfect Two cats >rescue< from the laboratory the previous day.

Future Simple You >present< a new camera for doing the research.

Infinitive He hopes >release< from prison despite being a science spy. Gerund I can't remember ask to complete this assignment.

Modal verbs Robots should >use< only for industrial purposes.

Gerund I can't remember >ask< to complete this assignment.