It snowed heavily last night. Is everyone in our class here today— Yes, and ________ of us was late for school this morning.

Would you be kind enough to help the boy _____ Chinese is really hard to learn?

The most energetic and important festivals are the ones that ____ the end of winter and to the coming of spring. [ ]

The experiment shows that proper amounts of exercise, if _______ regularly, can improve our health.

You will have to answer_____ your crimes one day[ ]