[ Grammar ]
You _____ go to the edge of the cliff. It’s very dangerous!
A. must
B. mustn’t

Random Topics:
Modal Verbs and ConjuctionsEnglish Morphosyntax-ed and -ing AdjectivesParallelism and Subject Verb AgreementMust Vs Have toTenses of Verbs - UsageGerunds and ModalsAdverbs of Manner, Likes and PreferencesVocabulary and PrepositionsWh- Questions Present Simple TenseOther quiz:
Noun › ViewTree
A. Person
B. Place
C. Thing
D. Idea
E. None
Modal Verbs › View
You … wear a seat belt at all times in a car.
A. have to
B. must
C. both are correct
Gerunds and Infinitives › ViewAfter getting my last credit card bill, I stopped (spend) ______ so much time at the mall. I need to follow my budget more closely.
A. spending
B. to spend
Grammar › View
In the sentence ‘Of all the students, Mark is the _______.’, which word should be used to fill in the blank?
A. smarter
B. smartest
C. more smart
D. most smart
