| A.fitting rooms | B.trading fairs |
| C.business talks | D.group meetings |
| A.what caused the shipping accident |
| B.when and where the shoes went missing |
| C.whether it was all right to use their shoes |
| D.how much they lost in the shipping accident |
| A.By collecting information from beachcombers. |
| B.By studying the shoes found by beachcomber. |
| C.By searching the web for ocean currents models. |
| D.By researching ocean currents data in the library. |
| A.traveling widely the coastal cities of the world |
| B.making records for any lost objects on the sea |
| C.running a global currents research association |
| D.phoning about any doubtful objects on the sea |
| A.To call people's attention to ocean pollution. |
| B.To warn people of shipping safety in the ocean. |
| C.To explain a unique way of studying ocean currents. |
| D.To give tips on how to search for lost objects on the beach. |