It’s very difficult _____ the child ______the work in time. Let’s go and help him.

We are bent on reforming ourteaching, because what we have done is far from ______.

Hiking is ________ in spring, I think.

Don’t be late ____class.We must be ____time.

_____ seemed selfish of him not to share his dictionary with others. But you shouldn’t have blamed him for this because he needed his dictionary to finish his paper then.