By this time next year he( ) from abroad.A:will be back B:should be back C:will have been back知道这个句子是将来完成时,但是A和C我 纠结了.

问题描述:

By this time next year he( ) from abroad.A:will be back B:should be back C:will have been back
知道这个句子是将来完成时,但是A和C我 纠结了.