问LZM E8-11

E8-11   The sale of government surplus machinery wil begin at 9 a.m. and continue until the supply lasts.

(b) begins at 9 a.m. ,  continuing until the supply lasts

(c)will begin at 9 a.m. and, until the supply lasts, will continue

(d) begins at 9 a.m. and, as long as the supply may last,  it continues

(e) will begin at 9 a.m. and continue as long as the supply lasts

上手发现有will还有continue，就把ACE都排除了，基于will continue是重复表达，我把and看成是will begin ... and (will) continue 的结构形式了（事实证明是错的）。 但是这种写法是否犯了歧义的错误呢？请大牛们指点迷津。

有人回答一下吗？还是我问得太低极了。