Unit7

UNIT 7
Ex6:    1.in,of                     5.for
           2.for                        6.on
           3.in                          7.at
           4.a head                   8.to
ex 15 :    1.did              5)have
              2.have             6.did
              3.did                7.has
              4.has                8.did
ex 17:    1.They have been shopping all day
             2.She has been working all night
             3.She has been walking all morning
             4.He has been painting all day
             5.They have been playing basketball all afternoon
ex 18  :  1.for  2.since  3.since  4.for  5.since  6.for  7.for  8.to

ex 19:  1.seven months
          2.last year
          3.shopping for day working since last night
ex 20 :  1.How long have you been studying French?
              2.How long have you been living in Hollywood ?
              3.How long have you been driving racing cars?
              4.How long have you been reading that book?
              5.How long have you been sunbathing?
ex 24 :    1.B:have you done
                 A:have already done
                 B:have you taken
                 B:do
              2.B:have you washed
ex 27  :   B:1980,1988
             C:1994,1996,1998
             D:museum
                  ride horse