[ Grammar ]
Kevin has been studying ______ over an hour.
A. since
B. for

Random Topics:
Helpful Phrases Adjectives & QuantifiersGrammar - Present PerfectAdverb ClausesConjunctions in Complex SentencesCity PlacesGrammar Comma UsagePassive and Active VoicePronounAdverbs of frequencyOther quiz:
Present Tenses › ViewWhere / you / usually / meet your friends?
A. Where do you meet usually your friends?
B. Where usually do you meet your friends?
C. Where do you usually meet your friends?
D. Where do you meet your friends usually?
Vocabulary › View
Reasons, facts, or other evidence that explains the main idea of a passage.
A. Solution
B. Main Idea
C. Text Structure
D. Supporting Details
Pronouns, Verb, Conjunction › ViewChoose the correct pronoun: “The cat is sleeping. ___ is on the bed.”
A. She
B. It
C. They
D. He
Modal Verb › View
It’s not necessary for you to wait
A. You had better wait
B. You don’t need wait
C. You mustn’t wait
D. You don’t have to wait
