【题目】Unluckily, when he got to the station, the train _______.

【题目】It was strange that the street was crowded _______ people.

【题目】—________? —They are from South Africa.

【题目】I have been in Shanghai since 2000. I used to live in a small village in Qingdao and I have a lot of beautiful about the life I spent there. (memorize)

【题目】I had to buy _______ of the three books because I didn’t know which one was the best.

【题目】Obama became the black American president in early 2009. (one)

【题目】You’d better have a big breakfast in the morning _______ be hungry before lunch.