Question

#[1] -They haven't finished all the work up to now. -They _____.

A.should B. ought to C. are supposed to D.are supposed to have 翻译并且分析包括语法。详细点。 答案D。

Answer 1

这是省略的一种
省略中
有
be
动词的
保留到be
，
有不定式的
保留到不定式to
，
有完成时时态标志have
/
has的
要保留到
have
/
has.
所以要选d

Answer 2

easy
are
supposed
to
=
should
应该的意思
are
supposed
to
have
(done)
=
should
have
(done)
本应该干某事但却没有做
所以这是一道
虚拟语气
的题目，答案当然选D