1. ____many times i read my essays before handing them in to the teacher, she always finds spelling mistakes in them
A. Much as. B. However C. No matter
D. More than
2.___ told you that Mr.Turner could cure insomnia was sadly mistake
A. Whoever B. Wherever C. Whatever
D. Whomever
3. ___how carefully you drive, you may still have a few minor accidents in the city traffic
A. Even if. B. No matter. C. Whenever
D. Although