原帖由 飘雪寒冰 于 2006-7-25 20:27 发表; b) \- A( r0 c, x! w3 g
"i haven't thought about it yet.. " ( S5 ?% ?7 q: U/ H# `, `0 D$ p: `' a) y- x" a5 F6 X
I always can't use the sentences like this.
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That's just my English teacher told us to do .
you know that practise makes perfect" L/ }6 S2 B/ r7 ?# l4 x' S; |
and you can use simple past tense as weill一般过去时 : u: f& Q6 e5 v# W1 Ecuz Americans seldom use perfect tense完成时 5 V. U' S8 B; b8 N, g( dit's OK