______ twice a year,whether it is a car or a truck,is the rule that every driver must obey in this city.
#98135
A
Examining
B
Examined
C
Having examined
D
Being examined
推荐题目
______ the project in time, the staff have been working at weekends since last summer.
#97036
A
Completing
B
Having completed
C
To have completed
D
To complete
_____ in Paris, the Louvre is one of the world’s largest art galleries. 
#94647
A
Locating
B
Located
C
Having been located
D
Being located