[ Grammar (was, were, could, could not) ]
Yesterday’s homework ______ difficult.
A. was
B. are
C. is
D. were

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Verb Tenses › ViewIdentify the tense of the verb in the sentence: ‘He has been working here for five years.’
A. Past perfect tense
B. Future continuous tense
C. Present perfect continuous tense
D. Present simple tense
Grammar › View
Janet ____ (work) for Smith and Brothers before she came to work for us
A. worked
B. works
C. has worked
D. have worked
