shall we 提问一般怎么回答

　　Shall we drive or go by train?

　　我们开车去还是乘火车去？

　　Shall we walk a little way?

　　我们走一小段路好吗？

　　Shall we let him in on the secret?

　　我们要不要把秘密透露给他？

　　Shall we have a race to the end of the beach?

　　咱们比赛跑到海滩那一头，好吗？

　　Do you need to keep these letters or shall we bin them?

　　你需要保存这些信件吗，还是干脆把它们扔掉？