1. Though a skilled worker, _____ last week because of the economic crisis.

　　2. He was disabled from birth, but he never felt frustrated, __.

　　3. The little boy next door has been beating his drum for a whole morning, which got on my nerves so much __.

　　4. The scientist tried to convince us that a tiger would not attack us __.

　　5. The nation s population continues to rise ______

　　6.___the problem will be solved easily because he is an expert in this field.

　　7. The problem lies in how people look at those students ___.

　　8. On Childrens Day, kids ___有资格免费进入) to all the city parks.

　　9. The restaurant next door serves good food, but the one across the street is much better ___.

　　10.___, he takes whatever umbrella he can find.

　　11. Animal experiments will continue to be necessary to resolve existing medical problems ___.

　　12. Professor Clark was a bit strict with us, ____.

　　13. The more you explain, ___.

　　14. He has done so much for the poor in his community that ___.

　　15. Since my childhood I have found that __