1 I can swim now, but I couldn’t do it last year.
我現(xiàn)在會游泳,但是去年我不會游泳。
2 She can play the piano well now, but she couldn’t do it when she was 5.
她現(xiàn)在彈鋼琴彈得很好,但當(dāng)她5歲時,她不會彈。
3 I can sing an English song now, but I couldn’t do it last week.
我現(xiàn)在會唱英語歌,但是上星期我不會。
4 I can ride a bike now, but I couldn’t do it when I was 5.
我現(xiàn)在會騎自行車,但是當(dāng)我5歲時,我不會。
5 They can speak English now, but they couldn't do it two years ago.
他們現(xiàn)在會說英語,但是2年前他們不會。
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