Change the sentences into past simple sentences. 1.we swim in the river. the river. 2.they can see a lot of squirrels. lot of squirrels. 3.he spends his days off in the country. days off in the country. 4.i use the computer a lot. computer a lot . 5.i usually send a lot of postcards. lot of postcards. 6.we write grammar exercises every day. exercises every day. 7.he understands everything. 8.we play tennis every week,she often wins. every week,she often . 9.she pust on her red coat. her red coat. 10.they usually meet him after school. after school.