As a businessman, you should know what your c __________ need most.
The sun d __________ below the horizon.
We must know something about the recent a __________ in medical science.
After the rain, there appeared a r __________inthe sky.
Dirtysnow can a __________ more sunlight.
I bought a beautiful __________(女衬衫）in a smallshop.
The __________(设计者）of the bridge is a young man.
He received 4，000 dollars for the __________(销售）of his car.
He worked in a small __________(公司）two yearsago.
Thewhite snow __________(反射）the bright after-noon sunlight.