7. His eyes stare at_______ is left of the brother's dinner on the table.

6. ―The teacher tries her best to explain everything to her students.
 ―That's exactly________ she is mistaken.

5. The manager will give the chance to______ he believes has the ability to complete the task.

4.    I can't imagine_______ excited she was when she received your letter and presents.

3. Experts believe___________ people can waste less food by shopping only when it is necessary.

2. The moment__________ John will never forget is Mr Smith gave him a lot of valuable advice on how to improve his writing.

用适当的连词填空

1. From space, the earth looks blue. This is_______ about seventy-one per cent of its surface is covered by water.

5.  The reason why he was late was because he missed the train this morning.

4.     The old man told his grandson that the moon went around the earth.

3.     His request is we should work hard.