in writing a lecture speech on AIDS prevention , she has no time to attend to her sick mother .
#18796
A
Occupied
B
Occupying
C
To be absorbed
D
Absorbing
推荐题目
Mr Smith, looking ______, started to work out a        problem.
#18305
A
puzzled, puzzling
B
puzzling, puzzled
C
puzzled, puzzled
D
puzzling, puzzling
 I haven’t seen______ this since I collected stamps.
#20461
A
as beautiful a stamp as
B
so anbeautiful stamp as
C
stamp as beautiful as
D
as anbeautiful stamp a