He then worked on peaceful applications of __________ that can ...

[ Vocabulary ]

He then worked on peaceful applications of __________ that can substitute fossil fuel for a clean environment.

A. navigation

B. mantle

C. mutations

D. nuclear energy.

Select your answer:

Random Topics:
Time Too / Very / So Brake vs. Break Future Perfect Continuous Past Simple Grammar - Verb Forms Was & Were Questions Simple Past Irregular & Negative Conditional Sentences

Other quiz:

Tag Questions › View

They don’t like city tours, _____?

A. do they

B. don’t they

C. are they

D. aren’t they

TOEIC Grammar › View

To remain on schedule, editors must submit all ____ to the book to the authors by Friday.

A. ideas

B. essays

C. revisions

D. suggestions

How to use : Read the question carefully, then select one of the answers button.