If people ______ the traffic rules, there will be fewer accidents.A. will obey B. obey C. obeys
The teacher showed us ______________ the problem.
-- It’s dangerous to walk across the street carelessly. --You’re right. We can’t be ________ careful while crossing the street.
If we don’t study hard, we will in our class.
I don’t know if she ____________ if it _____________ tomorrow.
How much difficulty did you have ________________ this problem?