The project,______by the end of 2006,will expand the country's network to cover 40,000,000 users.

问题描述:

The project,______by the end of 2006,will expand the country's network to cover 40,000,000 users.
A.being accomplished B.to be accomplished
C.accomplished D.having been accomplished

选C
A.B都是将来的时态,不可能的.
D的话,就是两个句子了,也不对.