单项选择题
A.why English has become a global language B.how many people in the world speak English C.how people in the world learn English as a foreign language D.whether we need to worry about English being a world language
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