1.the man next to our house drives like a farmer.

a. with bias
b. without bias
c. none
d. both a and b

2.ching from China is my new classmate who is for sure good a mathematics.

a. with bias
b. without bias
c. none
d. both a and b

3.its beautiful to see girls with straight hair only

a. with bias
b. without bias
c. none
d. both a and b

4.wearing a helmet is the single most effective way of reducing head injuries and fatalities resulting from motorcycle and bicycle crashes

a. with bias
b. without bias
c. none
d. both a and b​