She felt ______ about wearing the improper garment in the party.

My cousin Jack explained ____why he didn’tcome to our picnic.

They willfor Hong Kong next Wednesday.

Can’t you stay a little longer—It’s getting late. I really _____ go now. My daughter is home alone.

Seen from space, the earth looks like a blue ball, with ______ 75% of its surface covered with water[ ]