问题
选择题
Paul was not allowed to work he was fully recovered from the flu.
A．even if
B．whether
C．because
D．until
答案
答案：D
题目分析： A. even if即使，B. whether是否，C. because因为，D. until直到，句意：Paul不被允许工作直到他的流感完全恢复。这里使用了not…until…“直到…才…”，选D。