Complete the text with the words formed from the words in brackets.
Дополнить текст словами из скобок.

Many people think that it is 1 (point) to send people into space. It is dangerous and also very 2 (expense), and some would say that it’s not even 3 (science) useful. The costs of the 4 (maintain) of the space shuttles which are used for manned 5 (fly), and of the International Space Station, are simply 6 (astronomy). NASA – the National Aeronautics and Space Administration – consequently faces huge financial 7 (difficult). Perhaps they should forget the manned programme and look for more 8 (effect) missions