[ Grammar ]
_______ source of energy is the source that can’t be replaced after use.
A. Renewable
B. Natural
C. Effective
D. non-renewable

Random Topics:
Demonstrative PronounsPast Continuous Tense & Past ModalsTenses of Verbs - UsageTOEFL Adjective and AdverbUsed to - Would - TensesGerunds and InfinitivesFor vs SincePrefixes SuffixesLinking Words and ConjunctionGrammar ModalsOther quiz:
Gerunds And Infinitives › ViewI knew without …… that things hadn’t gone according to plan.
A. having told
B. to tell
C. being told
D. tell
E. to be told
Grammar › View
You were supposed to meet your friend for dinner at 6 pm, but you forgot.
What will you say?
A. I offer you my condolences.
B. I reject your apology.
C. It’s totally slipped my mind.
D. It doesn’t matter.
Grammar › ViewWhat …………………… were they to offer you a job abroad?
A. would you do
B. were you to do
C. might you have done
Grammar › View
Choose the adverb
The baby slept upstairs.
_
A. The
B. baby
C. slept
D. upstairs
