Englisch: modale Hilfsverben
Modalverben: can, could, can't, couldn't, may, must, mustn't, needn't, should, shouldn't
Setze das richtige Modalverb ein.

1 I (couldn't/can't) play tennis yesterday.

2 She (must/can't) the Internet. Her parents won't let her.

3 You (must/mustn't) cross here. It's too dangerous.

4 The bell has rung. (May/Needn't) we go outside?

5 Please take your mobiles, then I (mustn't/can) call you.