He was told that it would be at least th
题型:选择题
问题:
He was told that it would be at least three more months _____ he could recover and return to work.
A.when
B.since
C.before
D.that
He was told that it would be at least three more months _____ he could recover and return to work.
A.when
B.since
C.before
D.that