[ Grammar: Adjectives & Prepositions ]
We should be worried ……… climate change.
A. about
B. for
C. of
D. at

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Tenses › View. Identify the tense: ‘She is reading a book right now.’
A. Present Continuous Tense
B. Present Simple Tense
C. Future Continuous Tense
D. Past Continuous Tense
Appositive Phrase › View
What is the appositive in the following sentence?
I went to see Ricky, my brother, last Sunday.
A. I
B. Ricky
C. My brother
I ______ my teeth every night before going to bed.
A. brushes
B. brushing
C. will brush
D. brush
Grammar & Vocabulary › View
Can we play _______ card game?
A. one another
B. one more
C. one for
D. one on