[ Modals ]
Donald ____ at work early in the morning because his customers usually came in the afternoon.
A. needn’t be
B. mustn’t have been
C. can’t have been
D. didn’t have to be

Random Topics:
Preposition and Word FormWill, Be going to, Present ContinuousSuffixes and TensesGerund NounModals for Advice, Obligation/Prohibition, Necessity and Lack of NecessityModal ProbabilityAdjectives (-ed / -ing)Prepositions and AdverbsSentence TransformationSo....that... Such.......thatOther quiz:
Present Simple Tense › View________ it never _______ in Hanoi?
A. Does – snows
B. Do – snow
C. Does – snow
Past and Present Continuous tense › View
what is present continuous tense?
A. verb tense indicates that an action or condition is happening now, frequently and may continue into the future
B. for something which happened before and after another action.
C. words that describe the qualities or states of being of nouns
D. words that show an action (sing), occurrence (develop), or state of being