I don’t know how to ski, so I didn’t go skiing with Simon last week.
A. If I knew how to ski, I would go skiing with Simon last week.
B. If I would know how to ski, I would have gone skiing with Simon last week.
C. If I had known how to ski, I gone skiing with Simon last week.
D. If I knew how to ski, I would have gone skiing with Simon last week.

Random Topics:
Simple and Progressive Verb TensesInfinitives or GerundsPresent simple & ContinuousThe -ing Form of VerbsPast Tense & Present Perfect TenseComplex Sentences with Adverb ClausesDependent PrepositionsSimple, Compound, Complex SentencesPronoun-Verb AgreementGrammar MistakesOther quiz:
Grammar › View‘Can Billy come out and play?’
‘No, he ________ his mother do the chores right now.’
A. is always helping
B. helps
C. does help
D. is helping
Simile, Metaphor or Personification › View
The storm took the house in its teeth and shook it.
A. Simile
B. Metaphor
C. Personification
Ryder’s first job as superintendent of the Kadoka Area School District was to make the dress code uniform in all 4 schools.
A. The same
B. Public
C. Proper
D. Lower
Present Tenses › View
Taylor: … your brother talked to you yet? Susan: Yes, he ….
A. Has / did
B. Have / have
C. Has / has
D. Did/did