C1 academic vocabulary focusing on precise meaning, research methodology, evidence and argumentation.
Exercises
Modal Verbs of Obligation Exercise
B1 practice with rules, necessity, advice, prohibition, and lack of obligation.
Conditionals Review Exercise
B2 conditionals review: 12 single-answer gap-fill items covering zero, first, second, third, mixed, inverted, unless, provided that, as long as, in case, wish/if only, and conditional modal patterns.
Negative Imperatives Exercise
CEFR A1; focus: negative imperatives with Don’t + base verb and related beginner forms.
Bound Roots Exercise
C2 ESL multiple-choice gap-fill exercise on bound roots.