[ Passive Voice with Modals ]
Metal cans ______ cleaned before recycling.
A. can be
B. must be
C. may be
D. should be

Random Topics:
IELTS GrammarTenses and Sentence CompletionPresent and Past Simple TenseSynonymParallelism and Subject Verb AgreementSo Such Enough TooPast Simple TensePronouns/ Present TenseRelative Clauses and UsageIntensifiers: Really vs VeryOther quiz:
Grammar › ViewShe was too hot so she turned on the air conditioner. The verb “was” is what kind of verb?
A. Linking
B. Action
Grammar › View
You _____ have helped me with the groceries! They were super-heavy!
A. could
B. must
C. may
D. can’t
Some vs. Any › ViewI want ___cheese.
a. some
b. any
Preposition › View
What is the function of a preposition in a sentence?
A. It indicates the action of the verb
B. It modifies adjectives
C. It shows the relationship between a noun or pronoun and other words in a sentence.
D. It functions as the subject of the sentence
