Complete the following sentences with a/an,the or no article 1. we shall have five lessons on monday 2. let's go to sports ground and play voleyball 3. that.s good idea 4. what's matter? 5. what's problem? 6. we have got new teacher. teacher's name is mr green. 7. greens have got nice house. house is not in london 8. i met funny little boy yesterday. boy said: "i cant play football.let's play hide -and-seek" 9. in summer mike lived in country . he saw big tree there. tree was very old. 10. we bought armchair last thursday. armchair is comfortable.