4/ Look at those clouds! There's a storm _______.
A. threat B. threaten C. threatening D. threateningly
5/ It was a long and _______ battle and many men were killed.
A. blood B. bloody C. bleed D. bleeding
6/ I hope they'll have the good _______ to shut the windows before they leave.
A. sense B. sensitive C. sensible D. senseless
7/ The story is set in an _______ world.
A. image B. imagine C. imaginative D. imaginary
8/ The program traced the _______ of popular music through the ages.
A. develop B. developed C. developing D. development
9/ The firm produces kits for amateur car _______.
A. construct B. constructors C. constructive D. construction
10/ Most zoos try to exhibit animals in _______ settings.
A. nature B. natural C. naturalize D. naturalistic
