This dress is prettier, but it costs ______ that one.
| A．twice more than | B．twice as much as |
| C．as much twice as | D．twice so much as |
It was global warming , rather than other causes , ______ led to the extreme weather .
| A．which | B．who | C．that | D．what |
I was born in New Orleans , Louisiana , a city ______ name will create a picture for beautiful trees and green grass in our mind .
| A．which | B．of which | C．that | D．whose |
---- Why have you bought so much food ?
----My good friends ________ to stay with me for the weekend.
| A．are coming | B．have come | C．come | D．will have come |
It was _____ terrible earthquake and _____ number of people who were killed reached more than 20,000.
| A．a; the | B．the; a | C．the; the | D．a; a |
A driver should __ the road when .
| A．concentrate on; drive | B．concentrate in; driving |
| C．concentrate to; drove | D．concentrate on; driving |