________twice a year，whether it is a car or a bus or a truck，is the rule that every driver must obey in this city.
#88722
A
Examining
B
Examined
C
Being examined
D
Having been examined
推荐题目
____ many times, I could not remember her telephone number.
#96840
A
Told
B
Being told
C
Having told
D
Having been told
The money collected should be made good use _____ the people who suffered great losses in the earthquake.
#92828
A
of to help
B
to help
C
of helping
D
to helping
Nearly half a million people are believed _________ their homes in the past months as a result of the disaster.
#90934
A
to leave
B
to have left
C
to be leaving
D
to be left
Tom concluded his lecture ________ that he couldn’t emphasize enough how important our efforts were.
#94878
A
to say
B
saying
C
said
D
having said
________ in thought, he almost ran into the car in front of him．
#90193
A
Losing
B
Havinglost
C
Lost
D
Tolose