[ Grammar ]
You ———- keep your room clean and tidy.
A. must
B. mustn’t

Random Topics:
Modals, Infinitives and GerundsGrammar ( going to)Suffixes (ing-ed) SentencesContinuous TensePoetryComparative and Superlative AdjectivesSimple Present and Present Continuous TenseModals VerbsFunctional Sentence TypesOrdering AdjectivesOther quiz:
Interjections, Tag Questions and Nouns of Direct Address › ViewWhich of the following is an example of a tag question in a scientific context?
A. The experiment was successful, wasn’t it?
B. The hypothesis is proven.
C. The data is conclusive.
D. The results are unexpected.
Tenses › View
He … the community college this night.
- wouldn’t be attending
- won’t be attending