155. In Beijing volunteers are making use of every minute to ______ their foreign languages because volunteers must pass a written test and an interview.
A.polish up |
B.take up |
C.put up |
D.make up |
154. Using renewable energy is a simple idea, but ______ we find it hard to put into practice.
A.one |
B.what |
C.which |
D.That |
153. Though our city has a good public transport system, _____ private car is becoming _____ popular means of transport.
A.a; / |
B.the; the |
C.the; a |
D./; the |
152. The residents approve of the measure ______ so far in our city, _____ to bring a sharp rise in oil prices.
A.having been taken; intended |
B.to be taken; intending |
C.taken; to intend |
D.taken; intended |
150. He was never late for school, _______ more than once by the class teacher..
A.being warned |
B.after warned |
C.having been warned |
D.for warned |
149. Do not start a book unless you can see from the first few pages that it is ______ you can easily read and understand.
A.that |
B.one |
C.the one |
D.a one |