Put the words in bold type into the Singular and make other changes if necessary: 1) They know the town well and can show you the way to the theatre. 2) My friends live in Kiev, they study at the University. 3) Do these boys go to school In the morning or in the afternoon? 4) They want to buy some English books which they need for their work. 5) These girls sing well but they cannot play the piano. 6) Housewives work very much at home. 7) Two of my friends work at this plant, they are engineers. 8) These little girls like when their brothers play with them. 9) Children spend a lot of time out-of-doors. 10) My cousins have families of their own. 11) My sisters have breakfast at 8 o' clock in the afternoon. 12) They go to the library twice a month. 13) Their teachers tell them that they make a lot of mistakes because they are not attentive at the lessons. 14) They go to work by bus and return home on foot. 15) Two of my sisters are married, their husbands are workers.