The authorities declared that because of the war petrol was _____ and had to be rationed (定量供应).
When they met, they stopped and said hello to_______.
I don’t know whether small oranges are sweeter than big ______.
They were all tired, but _____ of them would stop to take a rest.
Although he 's wealthy,he spends___ on clothes.
Our manager allowed _______to take a holiday next week.