( b)1.Please give her ____ tea.
A.a cup B.a cup of C.the cup with.
( b)2.Uncle Li is making some model ships ____ the boys.
A.at B.for C.of
( a)3.Who's ____ duty today?
A.on B.at C.for
( b)4.---Is the kite broken?---I don't think ______.
A.it B.so C.that