McGraw Hill
Glencoe: Writer's Choice: Grade 6: Connecting Writing With Grammar
"Connecting Writing with Grammar" offers links to six exercises in English usage and sentence structure.
Lumen Learning
Lumen: Grammar: Try It: Sentence Structure
This is a non-graded sentence structure practice in which students are asked to copy a blank paragraph with punctuation provided then write sentences to fit the punctuation.
Capital Community College Foundation
Guide to Grammar and Writing: Subject Verb Agreement Practice 2
Students can use this method of online practice to gain understanding of subject-verb agreement. Students select the correct verb to complete each sentence. Submit answers for instant feedback on responses.