Выполнить.
exercise 19
a) find in the text the words which have the similar meanings as the following words: kind, free time, to suggest, difficult, much, to contain, to visit, perhaps, an item, a ship, mental, to be fond of, the base, several, old, to focus, great, various, nice, a lot of.

Kind -- type; free time -- leisure time; to suggest -- to offer (в тексте offers); difficult -- hard; much -- most; to contain -- to include (в тексте include); to visit -- to attend (в тексте attending); perhaps -- probably; an item -- a thing (в тексте things); a ship -- a boat (в тексте boats); mental -- skillfully; to be fond of -- enjoy; the base -- a kit (в тексте kits); several -- some; old -- a hobbyist (в тексте hobbyists); to focus -- to be engaged in (в тексте engaged in); great -- skillfully; various -- wide; nice --  skillfully; a lot of -- many.