Put the correct verb tense in these conditional clauses. 1)Unless Tom

Put the correct verb tense in these conditional clauses. 1)Unless Tom gives his library book back,he (have) to pay a fine. 2)If the earth suddenly (stop) spinning,we all would fly off it. 3)If I knew that dogs were allowed in the hotel, I (bring) my dog. 4)If I had known your problems with money I (lend) you some. 5)If you finished,we go for a walk. 6)The ice (shatter) if you walk on it,it39;s too thin. 7)If I (have) a university degree I wouldn39;t be sitting in this office