1.We ( clearn ) ..... French for years and i ( not succeed).... yet
2.she ( read) .... all the words of  Dickends for months 
3. I (wait) .... for my grilfriend for nearly half an hour
4. Mary ( rest) .... In the garden all yesterday , because , she ( be) ....ill
5.Although John ( study) ...at the University for 5 years
6.Jack (go) .... to Swizerland for a holiday last week .He ( never be ) ...there
7.we (live) .... here for six months
8.That  book ( lie) ....on the table for weeks