The  book has been  translated into thirty languages since it        on the market in 1973.
#102971
A
had come
B
has come
C
came
D
comes
推荐题目
-Have you got your test result? -Not yet. The papers _____.
#104685
A
are still being corrected  
B
are not correcting
C
have already been corrected
D
have not corrected
Stay awake!You should know that it ________to sleep in class.
#102691
A
doesn’t permit
B
is not permitted
C
will not be permitted
D
was not permitted
 Visitors              not to touch the exhibits.
#99045
A
will request
B
request
C
are requested
D
are requesting