[ Passive Voice with Modals ]
These rules ___ by everyone in the company.
A. have to be followed
B. have to follow
C. have been followed

Random Topics:
Grammar : can, could and be able toPhrase or ClauseModals and PhrasesSports VocabularyGrammar - Countable/ UncountableComparative and Superlative AdverbsGerunds + To InfinitiveComparison and ModalsV-ing/to-VIdiomsOther quiz:
Time Clause › ViewI will come and see you _____________.
A. when I was finishing my homework
B. as soon as I have finished my homework
C. until I finished my homework
D. after I had finished my homework
Adverbs › View
The manager _____________the next steps.
A. brief
B. briefly