It is difficult to predict what the long-term effects of the
It is difficult to predict what the long-term effects of the
what were the immediate and long'term effects of Reconstrcti
有关从句However,it is difficult to predict when the financial cr
To predict the future is difficult .改为同义句
what is the effects of smoking?
It is difficult to ________ the importance of the decision.
It is difficult to _____ the importance of the decision.
It is______ to predict the future of modern industry.
the long term physical effects are not yet known
英语翻译what is the term of president
It is difficult to estimate the number of youngsters involve
It is difficult to the point of impossibility for