[ 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:
Tenses › ViewLook! Mary ________ a beautiful new dress. She ________ so pretty in the dress.
A. was wearing / looked
B. wears / has looked
C. has been wearing / is looking
D. is wearing / looks
Grammar › View
There are two bedrooms in ________flat.
A. Hoa
B. Hoa’
C. Hoa’s
D. Hoas’
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
