Customers are asked to make sure that they the right change before leaving the shop.
(2013·北京卷)Experts believe people can waste less food by shopping only when it is necessary.
Police have found ________ appears to be the lost ancient statue.
His writing is so confusing that it's difficult to make out ________it is he is trying to express.
[2013·安徽卷] From space, the earth looks blue. This is ________ about seventyone percent of its surface is covered by water.
[2013·浙江卷] The only way to succeed at the highest level is to have total belief ________ you are better than anyone else on the sports field.