[ Grammar ]
I__________ what was happening
A. Couldn’t understood
B. Couldn’t understand
C. Was not able to understood
D. Was not able to understand
Select your answer:

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Academic VocabularyPrepositions and Prepositional PhrasesGrammar & VocabularyBecause / soComparative and Superlative AdverbsTOEFL GrammarComparisonPast Tense & Past Continuous TensePresent & Past TensesIf ClausesOther quiz:
Tenses › ViewHe will take the dog out for a walk as soon as he ……. dinner.
A-finish
B-finishes
C-will finish
D-shall have finished
Grammar › View
Two hundred miles………..a long distance.
A. is
B. have been
C. being
D. are
