若有理数m,n满足mn>0,且m+n<0,则下列说法正确的是( )
A:m,n可能一正一负
B:m,n都是正数
C:m,n都是负数
D:m,n中可能有一个为0
看图写单词。
① ____
② ____
③ ____
④ ____
⑤ play the ____
—Wow! beautiful music! I like the concert very much.
—I think everybody will have wonderful time tonight.
Too many ____ (rule) make Molly feel terrible.