The Internet began to boom in 1990.（ ）
举一反三
- The Baby Boom began before World War II. A: True B: False
- Colleges began embracing Internet access in the mid-1970s, when many began wiring dorms with high-speed connections.
- China’s Singles’ Day began on November 11, 1990 as a day for unmarried or uncoupled people to celebrate their lives.
- Mr. Green began to work in ABC Company in 1990. He ______ for ten years by next summer. A: will work B: will have worked C: has been working D: will have been worked
- Boom! Boom!Boom! A Series____explsions shook the vally.