Question

Listen and read the conversations. Pay attention to the highlighted sentences.

 

(1) Nick: Do you think Mars may support life?

Mark: I'm not sure about it. Scientists are trying to find life there.

(2) Mary: Do you think Ann will win tomorrow?

Tommy: I doubt it. She injured her arm in a match last week.

Answer 1

I'm not sure about it. (Mình không chắc lắm về nó.) 

I doubt it. (Mình phân vân/nghi ngờ chuyện đó.)