1. A car fell into a pit on the road and caught on fire.2. When I was speeding I run into a depression on the road followed by a sharp rise. Then I got a flat tire.
 pit depression cavity hollow這些字都有凹洞的意思，pit 特別用在路上的凹洞。
Smith 先生宣誓就職成為非洲的新財政部部長。 (請填空)
Mr. Smith has been worn in as Africa's new Minister of Finance.