Some concepts may be difficult to grasp chiefly because they may be unfamiliar or_____ ideas, opinions which we already hold.

A. in accordance with

B. in conflict with

C. in favor of

D. in response to

A. rough

B. tough

C. rigid

D. bold

A. for which

B. in which

C. in that

D. for that

A. funny, little, red, mosquito-like

B. little, funny, mosquito-like, red

C. red, little, funny, mosquito-like

D. mosquito-like, red, little, funny

A. When

B. while

C. as

D. since

A. alter

B. change

C. alternate

D. differ

A. oversee

B. overtake

C. overrun

D. override

A. apart from

B. away from

C. far from D. but for

A. had I known

B. and I had known

C. should I know

D. but I knew

A. what

B. that

C. similar

D. which