[ Grammar ]
You _________ open the door on an airplane when it is in the air
A. Mustn’t
B. Shouldn’t

Random Topics:
Infinitives and ING FormsGrammar - Be going to-Ing and Infinitive Verb PatternsPresent Perfect or Past Simple TenseSecond ConditionalsPast Perfect Simple TenseSimple Present and Present ContinuousPast PassivePassive with ModalsSimple Present Negative and QuestionOther quiz:
Grammar › ViewA: Have you built an app?
B: No, I ______. But I built a website.
A: Cool!
A. hasn’t
B. don’t
C. haven’t
Grammar › View
Mrs Anderson’s students____ bored in class.
a. never are
b. are never
Future Perfect Tense › ViewBy this time next year, Brian ————— a doctor.
A. will become
B. will have become
C. will have became
Grammar & Vocabulary › View
. He decided he didn’t need so many employees in his team, so a lot of people __________ their jobs.
A. lost
B. lose
C. were losing
