请问1．It is high time that we -．选started还是should have satrted?

请问1．It is high time that we ＿．选started还是should have satrted?2．The doctor thinks the patient will ＿now.Her temperature has gone down.选pull through还是pull out?3,Ted had told me that he always escapes being fined as he got very fast sports car.4,If only the rain ＿soon.选would还是will stop 5.It is I ＿am to blame.选that还是whom?为什么?请问1．It is high time that we ＿．选started还是should have satrted?2．The doctor thinks the patient will ＿now.Her temperature has gone down.选pull through还是pull out?3,Ted had told me that he always escapes being fined as he got very fast sports car.If only the rain ＿soon.选would stop 还是will stop 5.It is I ＿am to blame.选that还是whom?为什么？并且能告诉我以上问题为什么选那一项吗？