[ Present Perfect Continuous ]
You have been running in circles ____ 30 minutes!
A. since
B. for

Random Topics:
Grammar: was/wereContinuous TensesFuture TensesActive & Passive VoiceArticleZero ConditionalAdjectiveModals and Past TensesConditionals Type IPoetry VocabularyOther quiz:
Grammar › ViewChocolate _____ harmful for your teeth, but strawberries _____ useful for your health.
A. is / is
B. are / is
C. are / are
D. is / are
Vocabulary › View
Which of the following best defines the term “advantage”?
A. A situation in which someone is likely to succeed
B. A situation in which someone is likely to fail
C. A situation in which someone is neutral
D. A situation in which someone is confused
Tenses › ViewThe wind power plant ____ new turbines next year.
A. will install
B. installs
C. is installing
D. installed
Subject Verb Agreement › View
In the sentence “Neither the cat nor the dog ____ outside,” what is the correct verb to fill in the blank?
A. is
B. are
C. were
D. be
