---It’s a long time ______ I last saw you.
---Yes, and it will be another month ______ we can meet again.
| A．before; when | B．when; since | C．since; while | D．since; before |
（2013·北京卷). makes the book so extraordinary is the creative imagination of the writer.
| A．That | B．What | C．Who | D．Which |
（2013·北京卷)Experts believe people can waste less food by shopping only when it is necessary.
| A．why | B．where | C．that | D．what |
Police have found ________ appears to be the lost ancient statue.
| A．which | B．where | C．how | D．what |
His writing is so confusing that it's difficult to make out ________it is he is trying to express.
| A．that | B．how |
| C．who | D．what |
[2013·安徽卷] From space, the earth looks blue. This is ________ about seventyone percent of its surface is covered by water.
| A．why | B．how |
| C．because | D．whether |