How can you complete these dialogues? 1)a; will you stay with us for the weekend? a; oh, i m sorry. i hope your mum will be better soon 2)a; did columbus discover america in 1492 or 1592? b; in 1492, i think, . a; let s find out

1) B.    I would love to, but my mum became unwell, so I have to stay by her side until she gets better.

2) B.   In 1492, I think, but there are some people who claim that Columbus reached America in 1592.

По третьему образцу Вы дали не полный пример