Why is the famous althlete absent from thegame—He has been________to take part incompetitions for a year because of taking drags.

I ________ myself in my studies. In return, I gained great success. [ ]

Which is _______, the sun, the moon or the earth—Of course the sun.

One of the most important questions they had toconsider was ______ of public health

The girls who laughed loudly suddenly became aware ________ people looking at them.[ ]