Question

16) Marque a alternativa em que "must" indica uma obrigação:
a) She must be rich. She has a lot of jewels.
b) Somebody is knocking at the door. It must be Emily.
c) You mustn't swim in that river. It's too deep.
d) I must wash the dishes before going out.

Answer 1

Resposta:

Letra D

Explicação:

As outras indicam um dever