The family quarrelled about ___ shares the whole night.

I haven’t read ____ of his books, but judging from the one I have read I think he’s a very promising writer.

When you are reading fast, your eyes will be one or two word groups ahead ___your mind is taking on. 

--Tom failed again in the driving test. ---Why not?Tom is ____ but a fool in driving.

President Obama told television viewers that he saw ______ as his duty to run for a second term.