Do come here on Monday, __________we, as planned, will take part in the gathering of AIDS prevention volunteers
#92840
A
then
B
meanwhile
C
therefore
D
however
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 In the past few years, __________much improvement in the traffic.
#92127
A
there has been
B
there has had
C
there have been
D
there had been
This problem is said _____ three times. 
#92660
A
having discussed
B
to have been discussed
C
having been discussed
D
to have discussed