1、-Hello,my name is Johnson .I believe you have ______ a roo

1、-Hello,my name is Johnson .I believe you have ______ a room for me....
1、-Hello,my name is Johnson .I believe you have ______ a room for me.-Johnson oh,yes.Mr.johnson.It's Room 1201,on the second floor.
A.waited B.cleaned C.booked.本题答案为C.我选的是A.我需要详细讲解.并且我没查到booked这个词的准确意思.不要不会瞎猜它.
2、Who was the first one ____?
A、to reach B.to arrive C、to get to.本题答案为B、我选的是A
3.We have been good friend ______we joined the same ping-pong team.
A.after.B.before C.since本题答案为C.我写的是A
以上这几道题需答题的思考过程.并能告诉我自己的答案错在哪里.并且我想知道booked的汉语解释.本人在此谢过.我会在认为您答的非常好的情况下.在2O分钟内给您好评.无视先采纳后回答这样的回答