[ 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:
Grammar › View_____ boxes of chocolate do you have?
A. How much
B. What
C. How many
D. How
Modal Verbs › View
Which sentence uses a modal verb to express a future possibility?
A. She can play the piano.
B. They might travel to Japan next year.
C. He must finish his homework.
D. We should leave now.
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