[ Prepositions ]
We are all aware ______ the importance of the environment protection.
A. in
B. on
C. of
D. from

Random Topics:
Present Simple QuestionsGrammar (was, were, could, could not)Modals, Conditionals, and Clauses- Defining, Non-definingModals of ProbabilitySimple, Compound, Complex SentencesModal AuxiliaryConditionals Type ISentence LabelingAuxiliary Verbs, if, unless and ModalPreposition on TimeOther quiz:
Some vs. Any › ViewWould you like ___ more tea?
a. some
b. any
Vocabulary › View
It’s a kind of snake, very big and long.
A. panther
B. python
C. jungle
Conjunctions › ViewMy daddy works out everyday …. stay healthy
A. so that
B. for
C. in order to
Vocabulary › View
Temporarily inactive or inoperative.
A. dormant
B. arid
C. hackneyed
D. relegate
