[ Passive Voice with Modals ]
Recyclable materials ______ separated into categories.
A. can be
B. must be
C. may be
D. should be

Random Topics:
Verb Tenses and Sentence StructureComparison of Adjective and AdverbAdverbs and PhrasesModifiersPresent Perfect and Present Perfect Progressive Tenses“Put” Phrasal VerbPassive Voice with ModalsPast Tense vs Present TensePast Simple or Past ContinuousSentence TypesOther quiz:
Grammar › ViewI’m 18 and my brother is 20, so he’s …. me.
A. the oldest
B. older than
C. as old as
Modal Verbs › View
Rewrite the sentence using modal verbs:
You have the option to finish your math homework early.
A. You can finish your math homework early.
B. You might finish your math homework early.
C. You should finish your math homework early.
D. You need to finish your math homework early.
Present Simple › ViewBill and Calicia _______ to the mountains every year.
A. doesn’t drive
B. doesn’t drives
C. don’t drive
D. don’t drives
Idioms › View
Curiosity killed the
A. cat.
B. dog.
C. rabbit.
