[ Modal Verbs ]
The investigated was ongoing, but my guess was that it … one of the staff who had stolen the money.
A. must be
B. must have been
C. could be
D. could have been
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Relative Clauses › ViewIt is a car ______ I bought last year.
A. whom
B. who
C. which
D. whose
Grammar › View
Correct simple past tense.
A. She called her friend
B. She sent an email
C. She checked a website