he course of human development, the ultimate aim of the human race is to pursue the spiritual joy based on ______ materials.

We should consider the students’ request the school library provide more books on popular science.[ ]

The train for the city at ten, so you have enough time to make preparations

How long has Kangkang _____from home—For five days.

It’s really ________ you to drive so fast on such a rainy day. Slow down!