.He was told that it would be at least three more monthshe could recover and return to work.
A.when B.before C.since D.that
.He was told that it would be at least three more monthshe could recover and return to work.
A.when B.before C.since D.that
B
B。由语境逻辑可以推出在他恢复健康重新工作之前要过至少三个月，因此该空应填before引导时间状语从句。