[ Conditional Sentence ]
The students would have solved the problem if they _______ their textbooks.
A. had used
B. would have used
C. used

Random Topics:
Auxiliary VerbsModal Verb, Passive VoiceSentence Structure and Verb TensesPerfect Progressive TensesProgressive TensesProverbsConditional Sentence Type 3Grammar: Used to, Would, Be used to, Get used toSimilesPossessive NounsOther quiz:
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A. the
B. their
C. its
D. those
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Which article is used before words starting with a vowel sound?
A. an
B. a
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A. must not
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………… old are you?
A. Who
B. How
C. What