Our modern civilization must not be thought of as ________ in a short period of time.

[A] being created

[B] to have been created

[C] having been created

[D] to be created

[单选题]B．ecause of the complexity of our modern machine, we need our workers ______.A． to train specialB． specified in trainingC． to have specified trainingD． training specially

Our failure ______ ourselves to modern life often causes us trouble in our work.

[单选题]We must try to [preserve]the best of our moral values for our children and

Modern technology enables us to____ our bodies with new capabilities.A. enlargeB

[单选题]We must [harness]the skill and creativity of our workforce.A.convertB.store

We were told that the plan must be kept a _ _ from our competitors.A. messageB.

[单选题]We must find a way to cut prices _____reducing our profits too much.A.witho

We must find a way to cut prices _______ reducing our profits too much.这些英语题怎么做？

In our modern world， when something wears out， we throw it away and buy a new on

[主观题]A． country will become richer if it, though painful, fulfils ______.