[ Modal Verbs ]
All visitors ___ wash their hands before entering this room.
A. can
B. must
C. mustn’t
D. can’t

Random Topics:
Past Perfect Simple & Past Perfect Continuous-Ing and Infinitive Verb PatternsGrammar Like & Linking VerbGrammar - ConnectorsVerb TensesModal and Modal PerfectTypes of Simple SentencesAdjectives and DegreesComparative Adjectives and AdverbsState Verbs and Action VerbsOther quiz:
Pronoun › ViewThey will buy some foods, ….. foods are so delicious
A. him
B. they
C. their
D. theirs
Verb Patterns › View
The company is investing heavily in __________ advanced technology to stay competitive.
A. adopt
B. adopting
C. to adopt
D. adopted
