A:whether light goes faster than sound
B:how many colors were there in a rainbow
C:that the moon travels around the earth
D:what would the world be like in the future
家住威海的小强暑期去重庆参加夏令营,他一路游览名胜大川,享受着科技进步带来的便利。下面这些便利中,得益于第三次科技革命成果的是( )
读一读,补全对话。
A. What about you? B. How old is your cousin?
C. Do you have any cousins? D. What is his name? Ann: Hi! Mike.____Mike: Yes, I have one cousin.Ann: ____Mike: He's 9 years old. ____Ann: I have one cousin, too. He's a boy.Mike: ____Ann: His name is Dan.He is 10 years old.
—I quite agree. Sometimes it's even__________ than grades.