my sister is a bit quiet,为什么用a bit

my sister is a bit quiet,为什么用a bit Lucy's sister is a little bit quiet.（对a little bit quiet 提问 "My neighborhood is a little bit quiet"把a little bit quiet画线 a little bit quiet She is ______ quiet.A.little bit B.bit little He is（）quiet.A.a bit of B.a bit C.bit D.little a little bit quiet 可以说a little quiet吗?为什么? Ma Yan is thin and .quiet.A.little B.a little bit C.a bit of the weather is a bit cold yesterday.为什么用a bit 而不用much? she's a little bit quiet. HIS sister is a little bit unhealthy改为同义句 my father is a bit sleepy.my father has a bit sleepy.这两句那一句正