Complete the sentences. Use past perfect.
Example: I went to see the baseball match becouse ,,, (not see).
I went to see the baseball match becouse I had nevr seen a baseball match before.
1)We bought some sandwiches and ate them becouse we ,,, (not have lunch). 2) Sally felt very unhappy becouse she ,,, (miss her favourite film). 3)They stayed at home becouse it ... (Start raining). 4) My friend was happy becouse ge ... (win the first place in skiing). 5) Dick was very tired becouse he ... (walk their way). 6) The boy who has won ... the 100-metre race is my best friend. 7)Everybody was surprised becouse the new team ... (win the game). 8) Steve felt very bad becouse he ,,, (come down with a cold). 9) I came to school on time becouse I ... (catch the early bus). 10) I knew how to play chess becouse my father ... (teach me)