All the scientific evidence ________ that increasing use of chemicals in farming ________ damaging our health.                                         (2012·湖南，35)

      everyone in your family       meat?

Two­fifths of the highway________so far.

Tony has much difficulty ______Chinese , so he often asks me for help . 

 —________ two months enough for the project to be finished?—I am afraid not. The professor is ill and only after he recovers ______ go on with it.