[ Modal Verb ]
All passengers ___ turn off their mobile phone.
A. shall
B. must
C. must not
D. may not

Random Topics:
Verbal and Appositive PhrasesAdverbs (manners & modifiers)Prepositions after Verbs and AdjectiveNoun / PronounGerund Noun-Ing and Infinitive Verb PatternsSimple Present Tense with Adverb of FrequencyAdverbs of DegreeVOCAB & GRAMMARVerb Forms and PrepositionsOther quiz:
Past Simple Tense › ViewWhat time ____ lunch?
A. did you had
B. you haved
C. did you have
Tenses › View
I ____ (not see)Justin since last Friday night.
A. don’t see
B. haven’t seen
C. didn’t see
D. not saw
Question Tags › ViewI am mad at you. Don’t talk to me, … ?
A. shall you
B. do you
C. will you
D. are you
Grammar › View
A : Was it fun at the party?
A. Yes, it wasn’t.
B. Yes, it did.
C. No, it wasn’t.
D. No, it didn’t.
