[ Modal Verbs ]
You _____ not leave the class without informing the teacher.
A. must
B. shall
C. might
D. could
Select your answer:

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Articles A and An › ViewShe gave me _ book.
A. a
B. an
Grammar › View
Swimming is amazing, but I prefer to read in my spare time.
What is “Swimming” in level 3?
A. Preposition
B. Participle
C. Gerund
D. Infinitive
