1 The guard asked the passengers to back away/ down from the edge of the train platform. 2 The school carried on/out a fire safety drill. 3 Despite his accident, he carried on/out climbing. 4 Back up/out your computer files regularly. 5 The match was called off/back due to heavy rain. 6 She backed down/out of the race in the end
Coins are fun to collect. You see coins every day. Your uncle has got a fantastic coin collection. Some coins are from France, Canada, the USA and Japan. He is proud of his collection. You can get some information about other countries. Coin collecting is interesting. It makes a person happy."