[ Vocabulary ]
_________________ is passed along at each link in the food chain.
A. Happiness
B. Love
C. Energy
D. Time

Random Topics:
Grammar - Present Perfect TenseRelative Pronouns with PrepositionsPast Tense and Perfect TenseComparativesIndependent and Dependent ClausesRelative ClauseDemonstrative SpeechTransition WordsHave as verb and auxiliaryPassive and Active VoiceOther quiz:
Phrasal Verbs › ViewI wonder, when you ……. a deal like that, whether you’ll ever get one again.
A. cut back
B. back down
C. pass up
Grammar › View
In which case is the pronoun who or whoever belong?
A. nominative
B. objective
C. possessive
Grammar › ViewAustralia is …. (small) continent on earth.
A. the most small
B. the smallest
C. the small
D. the most smallest
Some vs. Any › View
Do you have ….. time for me after lunch today?
a. some
b. any
