单项选择题

Directions :In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked. Then you should mark the corresponding letter on the Answer Sheet with a single line through the centre. A large number of young girls sat under a big tree ______.

A. was singing and laughing
B. sang and laughed
C. singing and laughing
D. was sang and laughed
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填空题
What is the population of Indians