【D8】TEDDY: GRAVITY IS VERY IMPORTANT. BOB: WHAT DO YOU MEAN？ TEDDY: GRAVITY IS THE FORCE
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【D8】
TEDDY: GRAVITY IS VERY IMPORTANT. BOB: WHAT DO YOU MEAN？ TEDDY: GRAVITY IS THE FORCE THAT PULLS EVERYTHING DOW
N. BOB: 【D8】______ TEDDY: IF YOU POUR WATER INTO A GLASS, THE WATER GOES DOWN INTO THE GLASS. BOB: 【D9】______ TEDDY: WITHOUT GRAVITY, THE WATER WOULD GO UP. WITHOUT GRAVITY, WE WOULD GO UP, TOO. BOB: WE WOULD FLOAT INTO THE SKY LIKE A BALLOON？ 【D10】______ A. I"M NOT SUR
E.
B. OF COURSE IT DOES.
C. THAT WOULD BE FUN!
D. GIVE SOME EXAMPLES.
请帮忙给出正确答案和分析，谢谢！