Fifteen university students from Changjiang University were playing near the river, _____ they heard

题目简介

Fifteen university students from Changjiang University were playing near the river, _____ they heard

题目详情

Fifteen university students from Changjiang University were playing near the river, _____ they heard two
  little children _____ "help". 
[     ]
A. when; shouting                          
B. while; shouting
C. while; shouted                          
D. when; to shout
题型:单选题难度:中档来源:月考题

答案

A

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