装货单上，关于货物一般应记载的是（）。①实际装船数量；②所装船上的位置；③装船日期。
A.①-③
B.①②
C.①③
D.②③
参考答案：A
（-1）n=-n______．（请填写“正确”或“错误”）
He was told that it would be at least three months ___ he could recover and return to work.
A．when
B．before
C．since
D．that
