5. Jane has sent Elisabeth many different letters.
6. Will Mary have written her test by the time the bell goes?
7. The activities of our company are changing rapidly now.
8. Chocolate is made from cocoa.
9. Water boils at 100 degrees.
10. My colleagues usually work four days a week.
1.I learn English.
2.His younger brother is a schoolboy.
3.She doesn't work.
4.He is very busy.
5.Does he speak German?
6.My mother likes classic music.
7.They don't want go to the cinema.
8.Where are your parents?
9.She doesn't play chess.
10.He never gets up early.
11.She doesn't play chess.
12.They go to the theater once a month.
13.I help my mother with houseworking very often.
14.Do you drink coffee in the morning?
15.He rarely goes to the movies.
16.She doesn't read any newspapers.
17.These girls don't work, they study.