急 its it's their 的用法
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1.The three victims were members of a National Guard unit that had just completed __B) their___ first week of training.

A) its

2.Applicants are assigned a time based on their Social Security __B) numbers__.

A) number

3.Each member of the audience was given a flashlight and told to turn __A) it__ on when instructed to do so.

B) them

4.Demonstrating __B) its___ commitment to the environment,Penn State has signed a contract to obtain 5 percent of its electricity from wind-generated energy.

A) their

5.The planning commission voiced __B) their___ disapproval of the construction at last night's meeting.

A) its

6.In some cultures,courage and bravery in battle ___B) constitutes___ heroic qualities.

A) constitute

7.Young people,whether they live in the United States or Europe,often ___A) glorify___ rock performers.

B) glorifies

8.Athletics ___A) is__ an area that produces many heroes.

B) are_

9.The cause of hero worship ___A) is___ the people themselves.

B) are

10.Neither one of the prisoners had ___B) his___ sentence reduced by the commission.

A) their

11.The committee,made up of four members,will submit ___A) their_____ final report Wednesday.

B) its

C) it's

12.Every scarf on her shelves had outlived ____C) its__ usefulness.

A) their

B) it's

13.Either the table or the dresser must have ___A) their__ surface refinished so they will match.

B) its

C) it's

14.Members of the baseball team will leave for ___A) their___ next game Tuesday.

B) its

C) it's

15.The team is preparing for __A) its___ first road trip.

B) their

too few scores.