[ Prepositions ]

The boy needs to concentrate _____ his studies. His grades are falling.

A. In
B. On
C. About
D. Over

Select your answer:

Random Topics:
Expressing WishesGrammarReflexive Pronoun

Next quiz: Grammar

What were you ………. last night when I called you?

A. Did
B. Do
C. Does
D. Doing

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