[ Past Continuous Tense ]
You _____ _______ on the door but I was not at home.
A. were knocking
B. was knocking
C. knock ing

Random Topics:
Grammar - Sentence StructureSentence Structure and Verb TensesToeic VerbEs and SModal Verbs of Deduction and SpeculationAdverbs & to beActive Voice-Present tenseContrastive ConjunctionVerb BESuperlative AdjectivesOther quiz:
Prepositions of Place and Time › View……. February, we usually go skiing.
A. In
B. On
C. At
D. –
Adjective › View
Identify all of the adjectives in the sentence.
Daniel carried his heavy backpack all the way home
A. Daniel
B. carried
C. heavy
D. backpack
E. way
Grammar › ViewOn a night …
there was a big thunderstorm, the friends decided to tell each other frightening stories.
A. when
B. who
C. where
D. which
Relative Pronouns › View
Mary is the person … is very kind.
A. who
B. which
C. whom
D. whose
