English

 Text 3 answers

1. According to the text, aspirin originated

Not later than 1758.

2.The pronoun it in line 7 refers to

The willow bark.

3. The word properties in line 8 could best be replaced by

Characteristics.

4.According to the text, Brugnatelli and Fontana

Conducted studies on the willow bark.

5. Where in the text does the author name the scientific compound that makes up aspirin?

Lines 12-16.

Text 4 answers

1.The main subject of the text is

The closest stars to the Earth.

2.According to the text, which of the following is Not true?

Proxima Centauri is the closest star to the Earth.

3.The word comes in line 3 could best be replaced by

Is derived.

4.The expression interstellar distances in line 6 is 

Distances between  stars.

5.It can be inferred from  the text that if a person is left in one of today's spacecraft, he or she would arrive at Alpha Centauri

After more than ten lifetime.