I felt so embarrassed that I couldn't do anything but()there when I first met my present wife.
A. to sit
B. sitting
C. sat
D. sit
Throughout most of their lives, human beings perpetually learn and increase their mental capacities().
A. actually
B. readily
C. finally
D. constantly
There()no further business to discuss, we all went home.
A. is
B. was
C. being
D. would be
We have to ask them to quit talking in order that all people present could hear us clearly().
A. decrease
B. cease
C. continue
D. keep