_______ she was standing and waiting for a bus that she caught sight of the former President Clinton.
| A．It was while | B．As soon as |
| C．While | D．During the time when |
The little boy still needs the __________20 dollars to do with some things __________.
| A．remaining；remained to be settled |
| B．remaining；remaining to be settled |
| C．remained；remained to settle |
| D．remained；remaining to settle |
Taking this medicine，if__________，will of course do good to his health.
| A．continued | B．to continue |
| C．continues | D．continuing |
In the face of the big fire in October in California，many people in the fire-stricken areas moved out __________.
| A．to escape burning | B．to escape being burned |
| C．escaping burned | D．escaping from burning |
Yesterday a street beggar bought a lottery ticket purposelessly，__________him a millionaire overnight.
| A．making | B．makes | C．to make | D．made |
Seeing the road__________with snow,we had to spend the holiday at home,watching TV.
| A．blocking | B．to block |
| C．blocked | D．to be blocked |