______________ twice a year, whether it is a car, a bus or a truck, is the rule that every driver must obey in this city.
#92440
A
Examining
B
Examined
C
Having been examined
D
Being examined
推荐题目
Judging from his manners at the party, he doesn’t seem ______ much education.
#97937
A
to receive
B
to be receiving
C
to have received
D
to have been received
We agreed _______ here but so far she hasn’t turned up yet. 
#98624
A
having met
B
meeting
C
to meet
D
to have met
________ by the policy, he decided to build a new factory.
#88289
A
Being encouraged
B
Encouraging
C
Encouraged
D
Having encouraged