问题
选择题
— He hasn’t finished the work yet.
— Well, he _____.
A.ought
B.ought to
C.ought to have
D.ought to have finished
答案
答案:C
选C。 to后不定式的动词be,have或have been通常不省略。
— He hasn’t finished the work yet.
— Well, he _____.
A.ought
B.ought to
C.ought to have
D.ought to have finished
答案:C
选C。 to后不定式的动词be,have或have been通常不省略。