1. Fresh food without using c________ is better for your health.
答案：chemicals
2. The college graduated 50 students from the science d________ last year.
答案：department
3. It may take a long time to find a s________ to the problem.
答案：solution
4. If you can't h________ the job, I'll get someone else to do it.
答案：handle
5. There should be a ________ (禁止) on talking loudly in cinemas.
答案：ban
6. We must ________ (教育) the students to become useful people for our motherland.
答案：educate
7. He buried the treasure to prevent its ________(发现)．
答案：discovery
