E - mail is very popular today. People hardly post letters, _____?
#70848
A
did they
B
do they
C
didn’t they
D
don’t they
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His friend found______________ to tell him the truth . 
#70243
A
that was necessary
B
necessary
C
it’s necessary
D
it necessary
She’s read the  book, _____?
#69621
A
isn’t she
B
doesn’t she
C
hasn’t she
D
wasn’t she
There will be a new park in the center of the city, ______?
#69780
A
isn’t there
B
won’t there
C
isn’t they
D
won’t they