He_______have been here two hours ago, but he hasn’t_______by now.
#88191
A
might; turned to
B
should; turned up
C
could; turned in
D
must; turned on
推荐题目
 It is strongly suggested that measures _____students to cheat in the exams.
#89428
A
be taken to prevent
B
be taken to forbid
C
are taken to prevent
D
are taken to forbid
I _____ you somewhere before , but your name has escaped me _____ moment . 
#90395
A
must see ; for a moment
B
must have seen ; for a moment
C
must see ; for the moment
D
must have seen ; for the moment