I thought you might be tired, （） is why I decided to help you.

All of them are （） at Lana"s achievement.

What effect has the Internet had on music piracy

It took years for Einstein"s theory to gain acceptably.

What is true about sales of music over the last year

In this passage, the expression "walk in the shoes of" is similar in meaning to （）.

There is nothing so admirable as a man whose sacrifices his life and happiness for others. 

No one should blind himself （） the well-known fact.

An idle youth, a needy age.

The wound soldier made an effort to stand up, but the general stopped him.