Question

【题目】In the past, Changsha __________ a less developed city, but now it is one of the top ten happiest cities in China.

A.used to beingB.used to beC.is used to be

Answer 1

【答案】B

【解析】

句意：过去，长沙过去是一个欠发达的城市，但现在它是中国十大最幸福的城市之一。

考查动词短语。used to be 过去是 ；is used to be 被用于。根据语境"长沙过去是一个欠发达的城市，"考虑选择短语used to be。故选：B。