13.　All the passengers __________died in the airliner crash in Antarctic.

A. board　 　　B. abroad　 　　C. aboard　 　　D. broad

11._______________I used to play a lot of sport, but I seem to have lost interest now.

A. In time　 　　B. At one time　 　　C. At the same time　 　　D. On time

petition ,they believe, ________the national character rather than weaken it.

A. causes　 　　B. leads　 　　C. strengthen　 　　D. widens

10.With fewer than a million people ______ on islands, you’ll never feel crowded.

　 A. live　　　　　　 B. to live　　 C .living　　　　　 D. lived

9.He might have been seriously injured ______ his sudden brake.

　 A. except for　　 B. but for　　 C. as to　　　　　　 D. in addition

8.Charlie, where did you put my mobile phone after you used it ? I _______ it anywhere .

　 A. didn’t find　　 B. won’t find　 C. hadn’t found　　 D. haven’t found

7.Every evening after dinner ,if not _______ from work , I will spend some time reading novels.

　 A. being tired　　 B. tiring　　 C. tired　　 D. to be tired

6.Any rise above 2 degrees could lead to a sea level rise threatening coastal cities, ________ off many species of animals and plants.

　 A.　 to kill　　　 B. killing　　 C. killed　　　 D. having killed

5.Playing video games doesn’t ________ mean it will have negative impact on their social lives.

　 A. necessary　　 B. necessarily　　　 C to be necessary　　 D. to necessary

4.In disaster-stricken areas, volunteers services range from helping reconstruct the community’s culture　 ________ awareness on topics such as safety and healthy living.

　 A. to raise　　 B. raise　　 C. raising　　　 D. to raising

3.If　 we _______ no words in our vocabulary for “thank you ”,_______ we do a better job of communicating our gratitude ?

　 A. have; would　　　 B. had; will　　　 C. had; would　　　 D. has; will