Помогите с тестом по Английскому.
1. There is a theory that land sailing 
a) is a new sport 
b) has existed for years 
c) has existed for centuries 
d) appeared in the 1960s, 1970s 
2. Nowadays people practice land sailing 
a) everywhere 
b) in the same places as before 
c) in more places than before 
d) outside big cities 
3. The recent land yachts tend to be 
a) powerful 
b) pricey 
c) strong 
d) portable 
4. Land yachting 
a) is good for small places 
b) helps to save money 
c) is developing in Chicago, USA 
d) is environmentally friendly