The best way to explore _______ countryside is on _______foot.
The school owns many qualified teachers, but when it_____________facilities, the school is not modern enough.
You may take ___ half of the cake; they are exactly the same.
Our ____ resources and stable policy provide foreigners with the advantages of developing their business.
Once made out, the plan must be carried out ___ any difficulty.
I ___ on my report next week so I won’t be able to meet you any day.