When you’re learning to drive，_____ a good teacher makes a big difference.
| A．have | B．having | C．and have | D．and having |
The rescuing soldiers in the helicopters ______ to land on that area, but failed again.
| A．attempted | B．tended | C．managed | D．pretended |
His great success _________ hard work and good methods
.
| A．resulted in | B．led to | C．as a result of | D．resulted from |
.We would not allow her ________ across the enemy line.
| A．to risk going | B．risking to go | C．to risk to go | D．risk going |
. __________in a white uniform, he looks more like a cook a doctor.
| A．Dressing; other than | B．Dressed; rather than |
| C．Dressed; than | D．Being dressed; less than |
Wouldn’t it be ____________ wonderful world if all nations lived in _____ peace with one another?
| A．a; / | B．the; / | C．a; the | D．the; a |