1. Along the curve of islands known as the Florida Keys lies a reef of living coral, the only one of
a kind in the continental United States.
What's wrong with the underlined part?
2. Because he
is absent when his rivals voted against his proposal, Selby is worried about missing future meetings of the board of directors.
Again, what's wrong with the underlined part? and is the idiom 'worried of' correct, or does it have to be 'worried about'?
3. In those cities
in which public transportation is adequate, fewer traffic problems occur and pedestrians are rarely involved in accidents.
Shouldn't the underlined part be 'where'? Is 'in which' right as well?
4. What comes after 'preoccupation'? by? of?
5. By simply entering an Internet website or calling a tollfree number,
a catalog order can be placed for almost anything from cheesecakes to fully equipped desktop computers.
The underlined part is corrected to "you can place a catalog order".
Why is the original wrong or a worse choice?
6. Apparently impressed with our plans, the foundation awarded
Carlos and I a grant to establish a network of community centers throughout the city.
What's wrong with the underlined part?
Thanks!