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A2 Grammar · Word Play
Modal Verbs: could / might
Exercise 1 — Choose could or might
1.  She        be at the library — she goes there often.
2.  I        come to your party. I'm not sure yet.
3.  It        rain later — look at those clouds.
4.  He        swim very well when he was young.
Exercise 2 — Rewrite using could or might
1.  Maybe she is at home. → She       
2.  It was possible to see the stars. → We       
3.  Perhaps it will snow tonight. → It       
4.  He was able to play the piano. → He       
Exercise 3 — Notes from the lesson

Word Play · Cambridge English A2 · Modal Verbs: could / might