Jake __________ their office many times, but they never pick up.
A. has called
B. calling
C. did call
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Working here _________ difficult, but I am not going to quit!
A. have been
B. has been
C. is been
Beth ________. She will start looking for a new job on Monday.
A. was quit
B. have quit
C. has quit
_______ you _______ who to hire?
A. Have / decided
B. Had / decided
C. Is / deciding
She ____________ for this position for five months.
A. was trained
B. has trained
C. is training