[ 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:
Homonyms › ViewIs there any ___ in the soup?
a. meat
b. meet
Conjunctions › View
Will you go by train ___ by bus?
A. so
B. and
C. or
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