[ Modals ]
I think you _ tell your mom about it.
A. must
B. should
C. need to

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Grammar (Adjectives)Past simple - Irregular VerbsFuture Simple TensesPresent Tense (Negatives and Questions)Quantifiers and ArticlesSpellingModals in the PastClause Markers TOEFL GrammarSimple Past - Irregular VerbsV-ing/to-VOther quiz:
Clauses and Conjunction › ViewWhich sentence is correctly punctuated?
A. Oliver Twist, which was Dickens’s second novel, is a classic.
B. Oliver Twist which was Dickens’s second novel is a classic.
Grammar › View
Let’s count. One knife, two _____…, three…
A. knifes
B. knifs
C. knives
D. knive