On the surface of the water________, which spoiled the beautiful scenery of the park.
| A．some dead leaves did float | B．did float some dead leaves |
| C．floated some dead leaves | D．did some dead leaves float |
With two daughters _________ senior high school now, they have to work hard day and night to earn enough money.
| A．joining | B．participating in |
| C．attending | D．taking part in |
Miss Roffe is always _________ towards others and as a result, she gets on well with her colleagues.
| A．ashamed | B．considerate |
| C．stubborn | D．Cautious |
The child was told to _________ for being rude to his classmate, but he insisted that it wasn't his fault.
| A．excuse | B．forgive |
| C．apologize | D．Pardon |
I don't know the reason _________ you were absent from the meeting, but I'm sure it's for some reason _________ you don't want people to know.
| A．why ；that | B．that ； why |
| C．that ； which | D．which ； what |
—_________ on historical facts, it's well worth reading.
| A．To base | B．Having based |
| C．Basing | D．Based |