短文改错
此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行下边横线上画一个勾;如有错误(每行只有一个错误)，则按下列情况改正：
此行多一个词：把多余的词用斜线(\)划掉，在该行下边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号，在该行下边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行下边横线上写出改正后的词。
注意：原行没有错的不要改。
An old friends of mine from Beijing telephoned from 1.________
the airport to tell me that he has arrived. I was still at the 2.________
office at that time. I told him which my house was and that 3.________
I had left the key under the doormat. I asked for him to 4.________
make him at home. Two hours later, I telephoned him. 5.________
He told me he couldn't find the key under the doormat, and 6.________
he had no difficulty in entered my house, because the 7.________
window of my living room was just by the apple tree, and 8.________
he had climbed in. I was surprised. There has no 9.________
apple tree in front of my living room, but there is
one on front of my neighbour's. 10.________