[ Types of Sentences ]
Explain the punctuation rule used in this sentence:
Before I brush my teeth, I always floss.
A. A comma is needed because this is a compound sentence and it joins two dependent clauses.
B. A comma is needed because this is a complex sentence and the dependent clause comes first.
Select your answer:

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Present Simple vs Past SimpleConjunctivesTenses and ComparisonsWould rather/ would prefer/ would likeLinking Words & PhrasesConditional Sentences and Verb FormTransitional WordsSentence StructuresPrepositions & Modal VerbsComparatives and SuperlativesOther quiz:
Grammar › ViewYou should go to the museum [BLANK] you go to the city.
A. when
B. where
C. who
D. whom
Grammar › View
What is the form of a negative imperative sentence?
A. Don’t + future tense of the verb
B. Don’t + past tense of the verb
C. Don’t + present participle of the verb
D. Don’t + base form of the verb (infinitive)
