Basic science
Date processing
Sustain the ecological system
Inventions and discoveries
Maintain the rate of progress
2 Choose the write variant:
1 the least expensive - b
2 the fastest - c
3 a lot better - b
4 comfortable - c
5 the smarter -b
3
1- a
2- a
3- a/b
4- b
4
1 turning
2 to get
3 staying
4 to read
5 telling
6 visiting
5
1 had done
2 phoned
3 had written........had gone
4 buys
5 wouldn't have got