If you woke up 20 years from now in 2042, what would be different? Here are some ideas     1    (base) on numbers that don’t require crystal ball. About 70% of the world population is expected to live in urban areas by 2050. That means most cities are going to need more infrastructure. Roads, public transportation and waste management     2    (upgrade). And we’ll be older. We are likely to live until 82.4 years old, compared with the current life expectancy of 79.1 years. That’s a good thing     3     health care companies. But living three extra years is going to be more expensive,     4     will have implications for both working and saving.

Before I went to middle school, I     1    (dream) of becoming a teacher. I am sure that it takes great efforts to make my dream come true. So I learn as much as I can from teachers and textbooks. I make full use of my spare time to read books     2    (acquire) more knowledge. I have to work hard to be admitted to my ideal university. There will be many difficulties, but I will get them over. I believe my dream will     3    (definite) come true.