为你解答.
(1) giving
(2) smoking
(3) saying
(4) writing
(5) skiing
(6) working
(7) answering
(8) waiting
(9) mending
(10) playing
(11) eating
(12) painting, reading
为你解答.
(1) giving
(2) smoking
(3) saying
(4) writing
(5) skiing
(6) working
(7) answering
(8) waiting
(9) mending
(10) playing
(11) eating
(12) painting, reading