[ Vocabulary ]
It’s very ____, saving money and energy, to build energy-efficient buildings that don’t lose heat.
A. connected
B. risky
C. cost
D. economical
Select your answer:
Random Topics:
Academic VocabularySimple Present and Present Continuous TenseNouns - Word Form-IONCohesive DevicesRecount Texts and TensesParts of Speech and GrammarPresent Simple TenseAbilityReported Speech and Reporting VerbsComparatives - SuperlativesOther quiz:
Grammar › ViewWhat of the following is passive
A. will produce
B. will be produced
C. is checking
Grammar › View
I don’t want to go.
I’m ______ working out.
A. Still
B. Already
C. Yet
D. Just