Few people paid full attention to their health conditions ________ they were seriously ill．

A．when

B．if

C．until

D．after

I don't think this is by far－the most boring．I have seen ________．

A．better

B．worse

C．the best

D．the worst

A notice was placed by the river bank warning people to ________ the thin ice．

A．keep off

B．keep out

C．keep away

D．keep on

－This house looks beautiful, doesn't it?

－Well, I'd rather have a house ________ to look, but ________ to live in．

A．no beautiful; most comfortable

B．less beautiful; more comfortable

C．less beautiful; most comfortable

D．beautiful; comfortable

Mr．Smith said that their first trip to the seaside town was a ________ one but their second one was even more interesting．

A．the most interesting

B．very interesting

C．a most interesting

D．a more interesting

At the foot of the mountain ________．

A．a village lie

B．lies a village

C．does a village lie

D．lying a village

－Did you enjoy yourself at the party?

－Yes, I've never been to ________ one before．

A．a more excited

B．the most excited

C．a more exciting

D．the most exciting

Letterboxes are much more ________ in the UK than in the US, where most people have a mailbox instead．

A．common

B．normal

C．ordinary

D．usual

I wish you'd do ________ talking and some more work．Thus things will become better．

A．a bit less

B．any less

C．much more

D．a little more

My most famous relative of all, ________ who really left his mark on America, was Reb Sussel, my great-grandfather．

A．one

B．the one

C．he

D．someone