Astronauts _________ a big black hole in the distant crater.

He even forgot her mother _______ for he has lived overseas for so many years.

She was angry and pounded the hammer on her mobile phone, leaving _________ on the screen.

Many fishermen keep __________ to help them fish.

_________ are attractive birds for they have colorful beaks and look beautiful.

I like __________ because they look a little chubby and cute.

________ are often considered as greedy and fierce. Next time when you meet them, please be careful.