Select the correct sentence.
A. I failed the test because I have not been studying hard.
B. I failed the test because I have been not studying hard.
C. I failed the test because I has not been studying hard.
D. I failed the test because I have been not studying hard.

Random Topics:
How much or How many?Grammar: Defining Relative ClausesModals and Past TensesPresent TenseTransitive or Intransitive VerbsPast Tense and NeutralConditionals Type IPassive Voice of TensesQuantifiers, Countable and Uncountable NounsLinking Verbs & Helping VerbsOther quiz:
Adjectives and Adverbs › ViewWhat’s ________ you’ve ever made?
A. most important decision
B. the more important decision
C. the decision more important
D. the most important decision
Prepositions and Tenses › View
Identify the preposition in the sentence: ‘The book is on the shelf.’
A. in
B. beside
C. under
D. on
Tenses › ViewChange the following to present continuous: ‘She sings.’
A. She was singing.
B. She sings now.
C. She is singed.
D. She is singing.
Tenses › View
. This week, I _______ a new project for my work, and it’s taking up all my time.
A. am working on
B. work on
C. am being worked on
D. have worked on
