We all know the truth ______ there are air, water and sunlight, there are living things.
| A．in wherever | B．where | C．that where | D．that |
You may take ___ half of the cake; they are exactly the same.
| A．both | B．either | C．any | D．each |
Our ____ resources and stable policy provide foreigners with the advantages of developing their business.
| A．generous | B．narrow | C．limited | D．abundant |
Once made out, the plan must be carried out ___ any difficulty.
| A．instead of | B．in need of | C．because of | D．regardless of |
I ___ on my report next week so I won’t be able to meet you any day.
| A．am working | B．will be working | C．was working | D．have been working |
____in the sports world, a sportsman needs to train constantly to keep himself in best condition.
| A．Survive | B．Surviving | C．To survive | D．Survived |