I wrote to my parents once a week,____ I was too busy with my teaching work.
#80142
A
it
B
unless
C
when
D
as
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Before the meeting, Jack went over the report again ______ a mistake might occur.
#31902
A
while
B
in case
C
so that
D
even if
The notice says _________ you are, you must show your tickets to enter the exhibition.
#31117
A
whoever
B
who
C
however
D
Whom
His father got him a job in a bank but soon it became clear he was not fit for that kind of work.
#30610
A
why
B
what
C
whether
D
that