What does Shelley mean by the expression "castles in the air"?

Use the drop-down menus to identify each underlined verb form as a participle, gerund, or infinitive. 1.(climbing) a rope is not as difficult as you might think. gerund 2.i plan (to compete) in a chess tournament this weekend. infinitive 3.kali loves the smell of (roasting) garlic. participle

You have 24 hours to sleep, eat, work, and do all your personal tasks. which is the most effective way to do more in your day? a. eat less b. sleep less c. work more d. take more breaks

The empire state building was a. constructed by one hundred workers. b. was first lit up by president roosevelt. c. has more than one hundred stories. d took several years to complete.