—Would you mind________in the classroom?—Sorry,I won’t do that again.A.not runningB.don’t runC not to run
Students ___ slippers when they are at school.
He used ___ on the right in China, but soon got used ___ on the left in England.
___ too much is bad for your health.
We find ___difficult to finish the work on time. We only have two days left.
It’s not easy ___ me to talk with the foreigners in English.