[ Grammar ]
What is the helping verb in the sentence: “She has been studying all night.”
A. She
B. has been
C. been studying
Random Topics:
Verbs: Will & Going toAcademic VocabularyModal Verbs & Reflexive PronounsBe Going To vs. WillPassive Modals in Different TensesSubordinate ConjunctionsModal VerbsPresent Perfect Continuous TenseQuantifiers & Modal VerbsPresent and Past TensesOther quiz:
Comparison and Modals › ViewThere are plenty of tomatoes in the fridge. You ______buy any more.
A. mustn’t
B. needn’t
C. can’t
D. couldn’t
Grammar › View
Which of these is correct?
A. You’m sleepy.
B. You’s sleepy.
C. You’b sleepy.
D. You’re sleepy.
Subject Verb Agreement › ViewThe percentage of cats ___ risen sharply.
A. have
B. has
Vocabulary › View
fossil fuel; a flammable gas that occurs naturally underground
A. coal
B. oil
C. natural gas
D. nuclear energy
E. renewable resource