企源知识库

_________ he had time , he would go and study in the reading room.
A、Until
B、Whenever
C、After
D、Before
【正确答案】：B
【题目解析】：until直到；whenever无论何时，每当；after在...之后；before在...之前
句意：只要他有时间，他就会去阅览室学习。