[ Can vs Could ]
Grandpa ______ swim for hours in the lake when he was young. Now he gets tired easily.
A. can
B. can’t
C. could
D. couldn’t

Random Topics:
Continuous and Perfect TensesCommunicative GrammarTenses and Verb FormsPhrasal VerbWish, Unless, If sentenceGrammar - Countable/ UncountableVerb Present Simple TenseTransitive and Intransitive VerbVerbs - third personPossessive Pronouns and Adjective PronounsOther quiz:
Grammar › ViewWhich sentence uses the correct article?
A. A water vapor rises into the atmosphere.
B. An water vapor rises into the atmosphere.
C. The water vapor rises into the atmosphere.
Passive Voice › View
In the sentence “The cake was baked by the chef,” who baked the cake?
A. The chef
B. The customer
C. The server
D. The recipe
Subordinating Conjunction › ViewYou can’t leave the house ___ you finish your homework.
A. if
B. while
C. until
D. since
Grammar › View
His name is Messi, _______?
A. isn’t he
B. is he
C. is it
D. isn’t it
