[ Modal Verbs ]
When he was younger, he _____ climb mountains without any training.
A. could
B. might
C. will
D. can

Random Topics:
Paired ConjunctionVerbs & Phrasal VerbsModals TensesGive, do and makeModals of Obligation and PermissionAdverb Clause ConnectorPast Simple, Past Continuous, Past PerfectGrammar, Literature, and VocabularyNounIndefinite ArticleOther quiz:
Past Tenses › ViewWe had already eaten when John ________ (come) home.
A. came
B. had come
Vocabulary & Grammar › View
Eating too much fast food is ____________ to your health, so you should stop eating it so often.
A. harmful
B. proper
C. obvious
D. eager