Prepositions

I can't find my watch. Can you help me look ____ it?
1. for
2. after
3. about
4. at
What do you think ____ my ideas?
1. over
2. about
3. on
4. of
5. at
Tell me ___ your holidays!
1. of
2. about
3. over
4. from
Have you heard the latest news ____ the New York plane crash?
1. about
2. over
3. of
4. by
5. on
Please switch the TV-set ___ .
1. off
2. out
3. up
4. in
5. on
I have been ___ Greece five times so far.
1. in
2. at
3. on
4. to
If you can't spell the word you should look it ___ .
1. over
2. on
3. up
4. after