Переведите слова, и назвать другие слова, близкие по смыслу: conversely for example therefore

In reverse for instance ago, since

)the waitress hasn’t brought   our tea yet .the waitress brought our tea a few minutes ago. 2)the bell  has just rung. the bell rang some minutes ago.   3)he has already gone     to london . he   went to london   last week. 4)the boys   played football in the yard yesterday. the boys have played football in the yard many times. 5)mother has read  a new novel by aitmatov this month .mother read a new novel by aitmatov   last year. 6)students have already cleaned  their classrooms. students cleaned their classrooms last saturday. 7)the teacher has just explained   a new rule. the teacher explained a new rule at the pervious lesson. 8)ann has just done her home work. ann   did  her home work on friday. 9)they   have discussed theis problem many times . they   discussed this problem a few days ago 10)granny   has just made a birthday cake. granny   made a birthday cake yesterday. 11)the birds have already flown   to the south. the birds   flew  to the south at the end of august. 12)the train   has just come .the train   came an hour ago. 13)who has  just your friend spoken to? w ho did your friend speak to yesterday? 14)we have already written the words of lesson 7.   we wrote the words of lesson 7at the last lesson