1. The students’ work varies(不同) considerably in quality.
2. The course is approved(批准)by the Department for Education.
3. The police had to employ(采取) force to enter the building.
4. I don’t know whether to interpret(把……理解为)her silence as acceptance or refusal.
5. Medical opinion differs(相异) as to how to treat the disease.
6. The government is aiming at full employment (employ).
7. By comparison(对照), I found what she did is right.
8. But remember that return the favour(帮助, 恩惠)when he or she needs your help.
9. The demonstrators broke through heavy police barriers(关卡).
10. The companies with reliable(rely)quality, perfect service, reasonable price win the trust of new and old customers.
