______ once every two years, whether it is a car, a bus or a lorry, is the rule that all drivers must obey in our country.
#92782
A
Having been examined
B
Examined
C
Examining
D
Being examined
推荐题目
After the Shenzhou-9 manned spacecraft was successfully launched, Liu Yang became the first woman astronaut ________space in China.
#93302
A
to enter
B
enter
C
entering
D
entered
John rushed out in a hurry， the door .
#94111
A
leaving; unlocked
B
leaving; unlocking
C
left; unlocked
D
to leave; unlocking
. When the teacher came in, the student pretended ________ his lessons.
#97637
A
to do
B
to have done
C
to be doing
D
to be done
_____ in every aspect of his company’s business, Paul made himself busy day and night.
#89795
A
Being involved
B
Involved
C
Involving
D
To involve
He is said _______ his novel a year ago, but I don’t know why it hasn’t come out.
#94425
A
to finish
B
to have finished
C
to be finished
D
to have been finished