Put the verbs in brackets in the correct tens form/ 1)

Put the verbs in brackets in the correct tens form/ 1) The secretary_____( to type) letters since 10 a.m. 2) THe Mauna Loa volcano in Hawaii ____( to erupt) 16 times since 1900. 3) I39;m not going to watch this comedy again. I ______( to see/already) it several times. 4) Recently,Sam ____( to think) about going on holiday. 5) I39;m so tired, I ____________( to work) in the garden for house! 6)Five years agoo Tom and Harry ______( to climb) Mount Everest. 7) My father __________( to star) his carrer when he was just 17 years old.