One of the best _______ of the 20th century is the mobile phone.

A、one of the bests

B、one of best's

C、one best

D、one of the best

A.both...and

B.either...or

C.neither...no

Of the two architectural designs, I think this one is _____.

A、good

B、better

C、best

This is ____ that I have ever seen.

A. a best movie

B. one of the best movie

C. one best movie

D. one of the best movies

A.invents

B.inventions

C.inventors

D.invests

A regular

B normal

C average

D common

A．good one

B.a better one

C.the best one

D.a best one

A) something B) the one C) one D) it

____do you like best, the blue one, the yellow one or the red one？

A、what

B、which

C、how

D、whose