Topics: Passive Voice with Modals
Recyclable materials ______ separated into categories.
A. can be
B. must be
C. may be
D. should be
Select your answer:

Random Topics:
Conditional Sentences Type 1Past Tense and Perfect TenseToeic VerbPassive VoiceProverbsNounAdverbs, Prefixes, and SuffixesActive vs. Passive VoiceLinking WordsTransitional Phrases and ConjunctionsOther quiz:
Modals Posibility and Probability › ViewDavid has a chance of going to university, but he _______________ the exam next week.
A. may not pass
B. might be
C. could open
D. might not know
Grammar and Vocabulary › View
A: Are you ________ jeans?
B: Yes, I am.
A. wear
B. wears
C. wearing
