The boss insisted that every minute ______ made full use of ______ the work well.
#4535
A
be ; to do
B
was ; doing
C
be ; doing
D
was ; to do
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He apologized for _____.
#4530
A
his not being able to come
B
his being not able to come
C
his being able not to come
D
him not being able to come