21.Another five weeks ____ necessary for us to finish the work.A.are B was C is D will have been

问题描述:

21.Another five weeks ____ necessary for us to finish the work.A.are B was C is D will have been

21.Another five weeks __A__ necessary for us to finish the work. A. are B was C is D will have been

看成是一个整体 单数C

A. are