问题
选择题
--- Hello! Is that Tom over there? Long time no see. Let’s say hello to him.
---Please _____ in the library.
A．keep clean
B．keep quiet
C．wait in line
D．drop litter there
答案
答案：B
题目分析：句意：----你好！Tom在那里吗？很久不见。让我们和他打招呼。---请在图书馆里保持安静。keep clean保持清洁；keep quiet保持安静；wait in line排队；drop litter there把垃圾丢在那。根据情景，是让对方保持安静。故选B。