The teacher told us yesterday that December25______Christmas Day. 
#42564
A
is
B
was
C
has been
D
will be
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It’s reported that a light rail from Nanjing to Lishui        by the end of 2015.
#36887
A
has been completed
B
is completed
C
was completed
D
will be completed
In the last few years, great changes _________to her, she is not the one that used to be.
#39966
A
happened
B
have been happened
C
have happened
D
were happened
Mary _____ by the lake when a black cat ran past her.
#40107
A
sat
B
has sat
C
was sitting
D
sits