I’m not a little tired today after giving the room a thorough cleaning and I have never had __ today.
| A．as tiring a day as | B．as a tiring day |
| C．tiring as a day as | D．day as a tiring as |
Some people waste a lot of food ________ others haven’t enough to eat.
| A．however | B．when | C．as | D．while |
When and where to build the new factory _____ yet.
| A．have not decided | B．are not decided |
| C．has not decided | D．is not decided |
I have many friends, ________ some are businessmen.
| A．of whom | B．from which | C．who of | D．of them |
School children must be taught how to deal with dangerous ________.
| A．states | B．conditions | C．situations | D．positions |
The survey shows that ______ of the population in the country ______ adults.
| A．three fifths; is | B．three fifths; are |
| C．three fifth; are | D．three fifth; is |