[ Grammar ]
One combination is not possible: source of
A. people
B. information
C. energy
D. opportunities

Random Topics:
Articles & QuantifiersTenses, Determiners & Subject Verb AgreementPast Perfect and Past Perfect ContinuousInversion + Passive VoicePersuasive TextPassive SentenceSimple Past ContinuosPrepositions and AdverbsConjunctions and PrepositionAuxiliary WordsOther quiz:
Adverbs › ViewMaria already speaks English _____ (clear) her older sister who has lived here for 3 years.
A. as clearly
B. as clearly as
C. as clearly than
Grammar › View
The car was parked directly _____ the diner.
A. In front of
B. Before
C. Ahead of
D. On top of
A: I can’t find my keys!
B:I _______________ (help) you look for them.
A. will help
B. am going to help
Modal Verbs › View
It _________ rain, but the possibilities are low, there are only a few clouds in the sky.
A. has to
B. might
C. could
D. must