A.the stamps may lose color |
B.you may not find them anywhere |
C.the stamps may be out of date |
D.you do not know how many are left |
A.buy photo stamps at a very low price |
B.send their international mails for free |
C.design their own photo stamps |
D.have their letters delivered faster than before |
A.He thinks they are a great idea. |
B.He is afraid they may cause trouble. |
C.He thinks they save a lot of money. |
D.He thinks they are as good as the traditional ones. |