11.The new tough laws are being interpreted as a ____ of the government determination to work out the problems.
A.sign B.signal C.symbol D.signature
12.The teacher ____ the pupils spelling mistakes in red ink.
A.circuiting B.circular C.circus D.circled
13.People lived in ____ fear until liberation.
A.continuous B.continual C.constant D.eternal
14.To have the right qualification for a good job he attended a college that did technical and ____ training.
A.vocational B.military C.physical D.medical
15.Tony is very disappointed ____ the result of the exam.
A.with B.toward C.for D.on
16.The only ____ for his strange behavior is that he has been working too hard.
A.expression B.explanation C.experiment D.extensive
17.Our group won the first prize under the ____ of the teacher.
A.leadership B.leader C.leading D.lead
18.A house with a dangerous gas ____ can be broken into immediately.
A.leak B.split C.mess D.crack
19.After a year,she was ____ of the cancer.
A.treated B.healed C.cured D.recovered
20.Petrol is manufactured from the ____ oil we take out of the ground.
A.raw B.rough C.crude D.primitive