[ Grammar ]
Select the verb being used: Robert is washing his father’s car.
A. Action
B. Linking
C. Helping

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Prepositions of Time, Place, and MovementSimple Past or Past ContinuousGerund vs InfinitiveIdiomsWish clausePast and Perfect TensesNarrative, Past TensesSentence Structure and Pronoun AntecedentVerb AbilityPast Tense vs Present TenseOther quiz:
Modals of Obligation and Permission › ViewHe _____ called his mother to let her know he’d be home late, but he didn’t.
A. ought have
B. can have
C. must have
D. should have
Subject-Verb Agreement › View
Select the correct verb (singular or plural) for each sentence.
The people on the talk show sometimes __________.
A. disagree (plural)
B. disagrees (singular)
Vocabulary › ViewPRECAUTION
A. PREVENTABLE MEASURE
B. ALREADY PRESENT
C. 1ST OR MORE SIGNIFICANT
Grammar › View
What is the negative form of ‘Open your book’?
A. No open your book
B. Don’t open your book
C. Not open your book
D. Open not your book