A:19cm
B:17cm
C:9cm
D:9cm或17cm
当担心手中的瓶子掉下去时,如图所示,总是努力把它握得更紧一些,这样做的最终目的是( )
both different/the same both like each other always/usually/often ... play football/basketball... help people cross the street/carry the bags
I am…… .……is/are my good friend/friends. We ……
晚间睡觉前,应该与父母说什么?