Lot of work to do. He didn't know what to do first. (so much ... that)
8
• Word Formation
**
Complete each sentence with the
noun derived from the word in bold.
1 Many animals around the world face
(EXTINCT)
2 Our
day will start at
9:00 am. (CONSERVE)
3 There was a ..
in air pollution
last year. (REDUCE)
4 An ... happened at the factory
after the earthquake hit. (EXPLODE)
5 Hurricanes can cause a lot of
when they occur. (DESTRUCT)
6 Thanks to
programmes, the
landscape is protected. (PRESERVE)
7 Miras's
that we do some
volunteering was a good one. (SUGGEST)
8 The of agricultural products is
causing an increase in pollution. (PRODUCE)
...
...
WORKB​

1)down 2)make 3) will have 4)is leaving 5) won't drop 6) as soon as space probes, built, delivered, space journeys, space station, shuttle ТЕКСТ Nowadays travelling even to Earth’s closest neighbour planet Mars, let alone the planets in other /solar systems/, is still impractical. A trip to Mars and back would take more than a year. The /equipment/, supplies and fuel for such a trip would /require/ a vast rocket to launch a spacecraft from Earth. A return trip to the outer planets would take a lifetime. For the time being, /scientific research/ remain the best way of exploring distant worlds. Work is under way on a new international /shuttle/, which will be a base for a /space station/ . It is a modular structure, being built in space module-by-module, with sections being /delivered/ into orbit by the /space probes/ and unmanned launch vehicles. In the future, space stations such as this, or permanent bases on the Moon, could be a starting point for /space journeys/. Spacecraft would be /built/ and launched from there rather than from Earth. 

Б) notice - замечать, обращать (уделять) внимание;
    watch - наблюдать, следить, смотреть (что-то длительное, смотреть  телевизор, наблюдать как дети играют и т.д.)
    look - смотреть, взглянуть, посмотреть на что-либо, выглядеть;
    see - видеть, смотреть, представлять себе.
  
    Объяснение:
   - Look (at) — смотреть (на). На что-то неподвижное, статичное, неменяющееся (например, на картину, на небо, на снимок и пр.) Мы специально сосредоточиваем на этом внимание.
   - See - видеть. Мы видим часто предметы, которые попадают в поле нашего зрения, несмотря на то, заостряем мы на этом внимание или нет.
   - Watch - схоже с look, но watch — это смотреть на что-то меняющееся, наблюдать в течение некоторого времени за чем-то, что находится в действии и развитии.