Everyone knows that________ is dangerous to play with fire, but________ is difficult is to prevent children from playing with fire.
| A．it; what | B．what; what | C．what; it | D．it; it |
Carter Druse ________his being selected for the important task to his courage，devotion and knowledge of the area.
| A．led | B．owed | C．devoted | D．contributed |
The doctors made an ________of the damage and said she must have an operation immediately.
| A．application | B．assumption |
| C．arrangement | D．assessment |
—What ________his happiness all his life?
—________what he has got.
| A．has led to；Being content with |
| B．has led to；Being content to |
| C．led to；Content to |
| D．led him to；To content with |
—Do you know what made Susan so upset？I saw her weeping just now.
—________giving away state secrets.
| A．Charged with | B．Being charged with |
| C．Accusing of | D．To be accused of |
Weather ________，we'll go for a walk in the woods tomorrow.
| A．to permit | B．permitted |
| C．permits | D．permitting |