No one can tell how many sufferings the kidnapped boy ________ when he was rescued yesterday.
#102133
A
had
B
has had
C
had had
D
would have
推荐题目
The surface of the table ______ smooth enough.   
#102806
A
hash’t felt
B
isn’t feeling
C
doesn’t feel
D
isn’t felt
----Where can we get your latest children’s story?----Soon. It _______ and will come out next week.
#101911
A
has printed
B
is being printed
C
has been printed
D
has been printing
The construction of the two new railway lines   by now.
#99633
A
have been completed
B
has been completed
C
has coompleted
D
have completed