[ Passive and Active Sentences ]
The hens revolt because their eggs … to humans.
A. must be sold
B. must be selling
C. must sell

Random Topics:
Essential and Nonessential ClausesHow many / How much - Is there / Are thereModal Verbs - ObligationModal Verbs of Certainty and PossibilityPassive Modals in Different TensesTenses and Verb FormsSimple Present and Past TenseConjunctions & Cohesive DevicesThird ConditionalPast Perfect Simple & Past Perfect ContinuousOther quiz:
Tenses › ViewPasteur ________ in the 19th century.
A. was living
B. lived
C. had lived
D. has lived
Grammar › View
I didn’t know ______ book that was.
A. Who
B. Whom
C. Whose
Grammar & Vocabulary › ViewYeah. He has accused us ___ his emails
A. ignore
B. of ignoring
C. to ignore
Grammar › View
If you need to reach us, we ____ at the Fairmont Hotel that time.
A. will be staying
B. stay
C. have stayed
D. will stay
