[ Present Perfect Simple vs Continuous ]
We __________ (wait) for the bus for 20 minutes.
A. have waited
B. have been waiting

Random Topics:
Grammar of Conjunctions and PrepotitionsTo infinitive - GerundRelative ClauseArticles and PrepositionsDirect and Indirect QuestionQuantifiers / Prepositions of Time and Comparative AdjectivesBe going to / WillActive and Passive voiceTenses UsageAdjective, Adverb, and Noun FormsOther quiz:
Correlative Conjunctions › ViewIn the sentence, ‘Not only did she win the race, but she also broke the record,’ what is the correlative conjunction pair?
A. not only did
B. did also
C. Not only but also
D. she…the
Coordinating Conjunctions › View
My mom doesn’t like chocolate ice cream, ___ does she like vanilla.
A. nor
B. or
Grammar › View…. they finish the book tomorrow?
A. Will
B. Do
C. Are
D. Did
Grammar › View
Which word is NOT a preposition?
A. below
B. from
C. this
D. than
