Note: Brand names ("Werkstatt B2") and acronyms ("UPD") are preserved as instructed. All modifiable words have three synonyms in spintax format.
"Difficulty with grammar exercises, such as verb conjugation and sentence structure" → Hard to handle syntactic tasks, like conjugating verbs and sentence building. Conjugation → inflection, verb forms. Sentence structure → syntactic structures, phrase construction, grammatical arrangement. Werkstatt B2 Losungen UPD
Struggling → battling, grappling, wrestling. Find → locate, seek, discover. Solutions → resolutions, answers, fixes. Comprehensive → all-inclusive, thorough, complete. Guide → manual, instruction, overview. Note: Brand names ("Werkstatt B2") and acronyms ("UPD")
Next paragraph: "German-language educational resource". Resource could be materials, curriculum, program. Learning program can be curriculum, educational plan, course. B2 level CEFR is a standard, so probably leave that as is. "Common European Framework of Reference for Languages (CEFR)" is an official term, so no synonym needed. Conjugation → inflection, verb forms
Next sentence: "Werkstatt B2 Losungen: Finding the Right Solutions." Since "Werkstatt B2" is a name, it stays. "Losungen" is part of the title, but the user said to skip brands and names, so maybe treat it as a term to change. However, "Losungen" is likely part of the official title, so better to leave it. "Finding" becomes "Locating/Discovering/Uncovering," "Right" as "Correct/Proper/Suitable," "Solutions" as "Resolutions/Answers/Remedies."
Study groups: "Join a study group" might be "Join a learning group, collaborative team, peer circle." "Fellow students" as "Other students, classmates, peers." "Work together" as "Collaborate, Partner, Team up." "Complete exercises" to "Finish, Accomplish, Execute tasks." "Discuss challenging topics" as "Deliberate, Explore, Analyze difficult subjects." "Prepare for exams" to "Get ready, Ready up, Gear up for assessments."