When I came into the teacher’s office, he ________ on the phone.
#101238
A
was speaking
B
spoke
C
had been speaking
D
had spoken
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I found the lecture hard to follow because it _______ when I arrived. 
#99091
A
started
B
was starting
C
would start
D
had started
. Why _____ so many money recently? I am bored to see you.
#103814
A
are you borrowing
B
have you been borrowing
C
have you borrowed
D
did you borrow