After her son died in a car accident, the old lady would sit at the window, ______ out and _______ in thought.
| A．looked; lost | B．looking; losing |
| C．looked; losing | D．looking; lost |
The _______ girl sat in the corner________.
| A．frightening; cried | B．frightening; crying | C．frightened; crying | D．frightened; to cry |
We can see monuments here and there. Those who have made great ________ to human beings and society will never be forgotten.
| A．advance | B．progress | C．contributions | D．achievement |
The students are busy making preparations for the lecture because they will ______ the competition.
| A．attend | B．join | C．take part in | D．attend to |
--- Linda ____________ her parents for money.
--- ______________.
| A．asks, so she does | B．is asking, so is she | C．asked; so did she | D．is always asking; so she is |
The change was so _____ that we hardly noticed it.
| A．actual | B．frequent | C．gradual | D．grateful |