In face ___is a hard job for the police to keep order in an important football match.
| A．this | B．that | C．there | D．it |
I am too glad _____ you.
| A．to see | B．seeing | C．saw | D．at seeing |
The Arctic is considered _____ the northern part of the Atlantic.
| A．having been | B．to have been | C．to be | D．being |
_____, the boy couldn't enter his house.
| A．Since the key had lost | B．The key being lost |
| C．Lost the key | D．Having lost the key |
_____ in white, she looks much more beautiful.
| A．Wearing | B．Dressing | C．Dressed | D．Having dressed |
_____ her mother had come, her face lit up.
| A．Hearing | B．Having heard | C．When heard | D．When she heard |