The old man,_______ abroad for 20 years, is on the way back to his mother land.
#93876
A
to work
B
working
C
having worked
D
to have worked
推荐题目
Would you please make up a topic worth______ at tomorrow’s meeting?
#91552
A
discussing
B
discussed
C
to be discussed
D
being discussed
The paintings ______ from the National Gallery last week have been found.
#88701
A
stealing
B
to steal
C
stolen
D
to be stolen
 Sustainable development is long-term ________which focuses on the environment and  ________ natural resources.
#96505
A
plan; preserve
B
plan; preserving
C
planning; preserving
D
planning ;preserve