(27)
A.what
B.who
C.which
D.whom

(29)
A.making
B.providing
C.combining
D.substituting

(6)
A.laying
B.lay
C.laid
D.to lay

(7)
A.prolong
B.stretch
C.contact
D.reach

(9)
A.Mostly
B.Furthermost
C.Most
D.Almost

(12)
A.who
B.whom
C.whose
D.that

(13)
A.In contrast
B.However
C.In addition
D.Therefore

(14)
A.on
B.with
C.for
D.in

(15)
A.extremist
B.mighty
C.ordinary
D.abnormal

__________(22)
A.robbed
B.burgled
C.stolen
D.hijacked