29.The young teacher is in teaching English. A.keen B.competent C.good D.capable 30.The tourist is prevented from entering a country ifhe does not havepassport A.an operative B.a valid C.an efficient D.an effective29. The young teacher is _ in teaching English. A. keen B. competent C. good D. capable 30. The tourist is prevented from entering a country if he does not have _ passport. A. an operative B. a valid C. an efficient D. an effective