2) Tom plays football. (tomorrow) Tom will play football tomorrow.
3) You watch TV in the evening. (tomorrow) You will watch TV tomorrow in the evening.
4) I skate in winter. (next winter) I will skate next winter.
5) You fly to London. (next year) You will fly to London next year.
6) She writes a letter. (tomorrow) She will write a letter tomorrow.
7) Pete swims in the river. (in summer) Pete will swim in the river in summer.
8) Mary sings a song. (tomorrow) Mary will sing a song tomorrow.
9) Mary wins the competition in running. (next spring) Mary will win the competition in running next spring.
10) The children help their parents about the house. (next week) The children will help their parents about the house next week.