ركن السؤال و الأجابة 2

[عبد المقصود مصطفى]

situations
1- afriend says that we should spend less money on technology
2- make a prediction about tourism in space in the next 20 years

do you know ...............serious the problem is
(how- why - which - what )
mistake
1- i thanked the man who lives next door by giving me a present for my birthday
2- the spokes of the space station which have ordinary gravity will be for weightless sports