17. A new generation of entrepreneurs have seen different opportunities on the Internet and made great fortunes within a span ___ 10 years.
举一反三
- Since the great scandals in banking, many people in the country have _______________________ the prospects of economic recovery within a few years.
- Our president congratulated us on our outstanding performance and the great ___________(achieve) we have made in the past few years.
- The new big factory is reported （） within two years. A: to have completed B: to complete C: having been completed D: to have been completed
- I haven't seen him for years. = It's years ____________________________.
- It's years ..................................................(=I haven't seen him for years.)