______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.

I witnessed the gate of the bank _______ open and many men entering it, but I couldn’t make them out in the darkness.

She remained ______ for a while after the movie ended, which made others ______.

She likes _______ but she doesn’t like _______ now, because there are too many people in the pool.

It is generally considered that the key ______a foreign language well is nothing      but practice.