26.____thattheyareinexperienced,theyhavedoneagoodjob.
A.Giving
B.Togive
C.Given
D.Ifgiven
27.____,thepupilraisedhishand.
A.Notunderstandthequestion
B.Havingnotunderstoodthequestion
C.Nothavingunderstoodthequestion
D.Notbeingunderstoodofthequestion
28.____withthesizeofthewholeearth,thehighestmountaindoesnotseemhighatall.
A.Whencompared
B.Compare
C.Whilecomparing
D.Comparing
29.Thetravelerswerenotaware____thedangerahead.
A.with
B.of
C.for
D.to
30.Theoldwomannextdoorisverykeen____growingroses.
A.at
B.on
C.with
D.to