Unit 1
By (by) walking (by) bike (by bus) train (by train) How (how) to go to school (by traffic lights) Traffic rules (by traffic lights) Stop (by bus) and wait (by bus).
2 unit
Library (post office) Hospital (hospital) Cinema (cinema) Bookstore (bookstore) Where (where, where) Please (next to) turn right (left) and go straight (then).
Unit 3
Next week, this morning, this afternoon and this evening, comic books, postcards and newspapers.
Unit 4
Hobbies (hobbies) Cycling-diving-diving (diving) playing the violin-playing the violin (playing the violin) making kites-making kites (making kites). Collecting stamps-collecting stamps-life-life (life) teaching-teaching-walking-walking watch-reading-reading (reading, watching) no = no.
Unit 5
Singer (singer, singer) Writer (writer) Actor (actress) Actress (actress) Artist (painter) TV reporter (TV reporter) Engineer (accountant) Police (policeman) Salesman (salesman) Cleaner (cleaner) Where (where, where).
Unit 6
Rain (rain) cloud (cloud) sun (sun) stream (river, stream) comes from (from) seeds (seeds) soil (seedlings, buds) plants (plants, planting) should (then)