There was a strange sound outside．Mary went out and ________ around, but she ________ nothing．

A．saw; saw

B．looked; saw

C．watched; looked

D．looked; watched

阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。

　　I was in a strange city and I didn’t know the city at all．And what is more, I could not speak a word of the l　　1　　．After having spent my first day in the town center, I decided to lose my way on my second day, since I was sure that this was the better way of g　　2　　 to know the strange city．I got on the first bus in the morning, rode on it for several stops, then got off it and walked on．The first two hours p　　3　　 happily enough．Then I decided to turn back to my h　　4　　 for lunch．After walking about for some time, I decided I had better ask the way．The t　　5　　 was that the only word I knew of the language was the name of the street in which I lived and even that I pronounced badly．

　　I stopped to ask a friendly looking newspaper s　　6　　．He smiled and handed me a paper．I shook(摇)my head and repeated the name of the street, and he put the paper into my hands．I had to give him some m　　7　　 and went on my way．Then I met a policeman．I asked him at once．The policeman listened to me carefully．Smiled and took me b　　8　　 the arm．There was a strange look in his eyes as he pointed left and right and left a　　9　　．I thanked him politely and began walking on．

　　About an hour passed and I found that the houses were getting fewer and fewer and green fields could be s　　10　　 on either side of me．I had come all the way into the country．The thing left for me to do was to find the nearest bus station．

There was a strange sound outside．Mary went out and ________ around, but she ________ nothing．

A．saw; saw

B．looked; saw

C．watched; looked

D．looked; watched