Only by shouting at the top of his voice _________________.
16.By the end of last year, another new gymnasium _____ in Beijing.
15.At the meeting, a proposal that he should take charge of the project _____.
14.Teachers _____ their knowledge to their students .
13.Rainforests _____ and burned at such a speed that they will disappear from the earth in the future.
12.He got well –prepared for the job interview, for he couldn’t risk _____ the good opportunity.