Do you know where David is? I couldn’t find him anywhere. —Well. He ______ have gone far—-his coat’s still here.

The photo was taken ______ stood the famousBird’s Nest in Beijing during the Olympics

These ________ my parents.

do you think he solved the problem in such a short time— With Mr. Li’s help.

How much are the two pairs of shoes? —They are not expensive. I think fiftydollars ______ enough.