[ Conjunctions and Preposition ]
Children should be aware at / of the environmental issues we’re facing.
A. at
B. of

Random Topics:
Present/Past/Past ParticpleOffer and SuggestionSentence CompletionArticles & PrepositionPronouns of QuantityPresent Continous TenseQuestion WordsPresent TenseSpeculation with Modal VerbsSimple and Past TensesOther quiz:
Adjectives-Comparison, Superlative › ViewWhat are you doing with these ____________ bottles?
A. empty glass
B. glass empty
Vocabulary › View
Choose the word that best completes the sentence. The _____ (n) in the upper right corner indicates three notable items shown on the map.
A. quote
B. legend
C. journalism
D. session
Verb Tenses and Sentence Structure › ViewComplete the sentence with the correct form of the verb: ‘I _____ a lot from my trip to the mountains.’
A. learned
B. ate
C. slept
D. danced
Grammar › View
She wishes she ____ the exam.
A. passes
B. had passed
C. will pass
D. is passing