完形填空(1)A baber was working when a tall man came in with a bo

完形填空(1)
A baber was working when a tall man came in with a boy of about ten after him.The barber was ＿1＿to give him a shave ＿2＿cutting child's hair.
After the man had his shave,he told the barber that he would ＿3＿to go down the street ＿4＿a drink while the baber ＿5＿the boy's hair.The man also told the boy that he would be back ＿6＿.
It ＿7＿take the barber long to give the boy a haircut.Another half an hour ＿8＿and the boy was still kept waiting.At last the barber could't help asking the boy ＿9 ＿his father was away so long.
The small boy told the barber that the man was not his father at all.He said he happened to ＿10 ＿him in the street,and was asked ＿11 ＿he would like to have a haircut.Heagreed and ＿12 ＿the man here for a haircut.
( )1 A helped B asked C needed D like
( )2 A then B untel C before D so
( )3 A be B like C think D not
( )4 A for B to C by D with
( )5 A took B put C had D cut
( )6 A just now B at the moment C before long D long before
( )7 A did B didn't C was D had to
( )8 A past B went C had passed D later
( )9 A who B why C when D what
( )10 A look at B watch C meet D find
( )11 A that B whether C when D where
( )12 A sent B took C followed D showed
第1、7、12能不能解释一下

BCBAD CACBC BC
1.ask表示请求
7.another half an hour 说明前面等了很久
12.小孩自己没有什么方法,就跟着那个人去了（follow）