Where did you buy the typewriter?It is quite good.- A% L9 T# T, K0 @5 G; N/ O
& G6 {$ ^9 z8 g
% B2 ]9 c! k: h. h5 a4 G1 z
Did you drink coffee just now?1 u) N6 B9 D0 j% `' h7 o
NO i didnt ,Idont like coffes. $ u! I1 e4 Y3 {& x1 g0 _/ O% y$ X u' @7 w1 ?
在这个两句子中，为什么会用did这个词，而不是do,
发表于 2010-7-15 00:57:48