Use the correct prepositions at, in, on in the following sentences 1.the course begins september 15 and ends december 15. 2.he goes to bad midnight and gets up 7 o’clock the morning. 3.the movie starts about 8 p. m. 4.what do you usually do the weekend? 5.hurry up! the plane leaves half an hour. 6.i go out with my friends saturday evenings. 7.we study in the library weekdays. 8. i don’t stay home the evening. call me the afternoon. 9. she isn’t busy this time. 10.her grandmother died 1994, september 12th. 11.children go out trick-or-treating halloween. 12. there are a lot of parties new year’s eve. 13.she likes to stay home .