How many planets orbiting other stars have the two scientists discovered so far

A．it's very hard to plant many kinds of flowers in a garden
B．it's good for people from other countries to learn English
C．more and more people like to plant roses in their gardens
D．English is easier to learn than other languages

A．.. and Pakistan" in the second paragraph, the author is trying to show that______.A. speaking the same language doesn't necessarily bring peaceB. wars can destroy the relationship between two countriesC. English doesn't kill other languagesD. English is widely used in the world