LearnEnglishFeelGood.com's "Advanced English Grammar" Collection (100 worksheets) contains the following exercises:

Adjective phrases 1
Adjective phrases 2
Apostrophes 1
Apostrophes 2
Capitalization 1
Capitalization 2
Capitalization 3
Capitalization 4
Capitalization 5
Capitalization 6
Capitalization 7
Correct comma usage 1
Correct comma usage 2
Correct comma usage 3
Correct comma usage 4
Correct comma usage 5
Correct comma usage 6
Comma splices 1
Comma splices 2
Comma splices 3
Commonly confused words 1
Commonly confused words 2
Commonly confused words 3
Commonly confused words 4
Sentences: complete, fragment, or run-on? 1
Sentences: complete, fragment, or run-on? 2
Sentences: complete, fragment, or run-on? 3
Sentences: complete or fragment? 1
Sentences: complete or fragment? 2
Sentences: complete or fragment? 3
Sentences: complete or fragment? 4
Sentences: complete or run-on? 1
Sentences: complete or run-on? 2
Sentences: complete or run-on? 3
Sentences: complete or run-on? 4
Conjuntive adverbs 1
Conjuntive adverbs 2
Conjuntive adverbs 3
Conjuntive adverbs 4
Dangling modifiers 1
Dangling modifiers 2
Dangling modifiers 3
Dangling modifiers 4
Dangling modifiers 5
Dangling modifiers 6
Homonyms 1
Homonyms 2
Homonyms 3
Homonyms 4
Homonyms 5
Identify the adjective 1
Identify the adjective 2
Identify the adjective 3
Identify the direct object 1
Identify the direct object 2
Identify the verb 1
Identify the verb 2
Irregular plurals of nouns 1
Irregular plurals of nouns 2
Irregular verbs 1
Irregular verbs 2
Irregular verbs 3
Irregular verbs 4
IT'S or ITS 1
LIE or LAY 1
LIE or LAY 2
Misplaced modifiers 1
Misplaced modifiers 2
Misplaced modifiers 3
Noun clauses 1
Noun clauses 2
Parallel sentence structure 1
Parallel sentence structure 2
Participle phrases 1
Participle phrases 2
Participle phrases 3
Prefixes and suffixes 1
Prefixes and suffixes 2
Prefixes and suffixes 3
Punctuating direct speech 1
Punctuating direct speech 2
Punctuation 1
Punctuation 2
Punctuation 3
Punctuation 4
Redundant words and phrases 1
Redundant words and phrases 2
Redundant words and phrases 3
Subject/verb agreement 1
Subject/verb agreement 2
Subject/verb agreement 3
Subject/verb agreement 4
They're, Their, There 1
They're, Their, There 2
Verb tense consistency 1
Verb tense consistency 2
Verb tense consistency 3
Verb tense consistency 4
Which part of speech? 1
Which part of speech? 2
YOUR or YOU'RE 1
YOUR or YOU'RE 2