4. baby boom
举一反三
- The Baby Boom began before World War II. A: True B: False
- What is the reason of America’s baby boom? A: Upturn in the economy. B: Strong religious faith. C: The improved quality of life. D: Being full of confidence for the future.
- In Line 4 , the word “boom” could best be replaced by______.
- Boom! Boom!Boom! A Series____explsions shook the vally.
- What is meant by the term TOPPING THE BOOM?（） A: Lowering the boom B: Raising the boom C: Spotting the boom over the deck D: Swinging the boom athwartshi