[ Present Perfect Simple & Present Perfect Continuous ]
He has been collecting fossils ___ he was a student.
A. for
B. ago
C. since

Random Topics:
Perfect Tenses of VerbsInfinitive FormsWh- Questions Present Simple TenseConjunctions & PrepositionsComplex SentencesUnless If First ConditionalPreposition of TimePrepositions after VerbsAdverbs (manners & modifiers)How much or How many?Other quiz:
Pronouns, Verb, Conjunction › ViewFill in the blank with the correct conjunction: “She likes to read books ___ watch TV.”
A. and
B. but
C. because
D. if
Simple Future Tense › View
Are you and your family going to China? (Mexico)
A. Yes, we are!
B. Yes, we’re!
C. No, I am not. I going to Mexico.
D. No, we aren’t. We are going to Mexico.