7．The country depends on ________(旅游业)for most of its income.

6．His score is now well into double ________(数字)．

5．Many c________ sent money to help the refugees(难民)．

4．Can I e________ pounds for dollars here?

3．Indians are the first i________ of North America.

2．A child receives its early e________ from its parents at home.

1．We m________ the room and found it was 20 feet long and 15 feet wide.

5．The bridge is 200 metres in length或The bridge is 200 metres long.

4．I was able to pick you up on the shortwave radio.