It was not until the end of the trip ______ I realized what a good feeling it was to have helped someone in trouble.
-– David has made great progress recently. –- _________, and ________.
The only _______ to living in the countryside is the inconvenient transportation.
-– Do you like his joke? -– Not at all. ________.
The picture, _______ on the wall, is painted by a famous painter.
It is obviously that his parents didn’t teach him good _______.