She left without saying anything. I thought silence is golden.

Needless to say he is the best, he is the greatest leader.

As a matter of fact, I haven't seen that movie yet.

He said whatever he wanted, causing trouble for all of us.

The summer vacation ended in the blink of an eye.

The Paleogene period was a very important time in the history of the Earth.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

I have been to Outer Mongolia.

I have been to Chicago.

He is always grumbling about trivial things, it's really annoying.