[ Present Perfect Tense ]
They have danced salsa _________ 5 hours.
A. for
B. since

Random Topics:
Definite and Indefinite ArticleNoun and Modal VerbsComparative AdverbsParticiple - ing/ edDependent PrepositionsVerb AgreementNoun and PronounActive & Passive VoicePhrasal VerbA/AnOther quiz:
Modals › ViewError Analysis
He had better to save some money each month; otherwise, he will face financial difficulties in the future.
A. had better
B. to
C. will
D. face
Comparative Adverbs › View
Melissa walked into the classroom (loudly, more loudly, loudlier) than Ben.
A. loudly
B. more loudly
C. loudlier
Modals - Reported Speech - Conditionals › ViewIt had been raining and my best friend´s wedding was going to start
A. He could have gone before starting to rain.
B. he might have taken an umbrella and walked.
C. He may have get a taxi.
D. He shouldn´t go.
Conditionals › View
If we ………. (drink) enough water, we ………. (have) lots of energy.
A. drink/has
B. drink/ have
C. drank/have
D. drank/had
