问题补充:
Everyone of us it’s important a seat belt in the car.
A. knows, wears
B. know, to wear
C. knows, to wear
D. know, wearing
答案:
A. knows, wears
B. know, to wear
(答案→)C. knows, to wear
D. know, wearing
解析:everyone of sb 作为主语,相当于三单形式,故用动词的三单形式,而后一空属于固定句型,即it’s +adj+for sb to do sth,故选答案为C