It’s impossible that you achieve your goal without effort, ________?
#64554
A
isn’t it
B
is it
C
don’t you
D
do you
推荐题目
 Are these apples? Yes, ____ 
#60263
A
they are
B
they’re
C
they aren’t
D
they’re not
Listen! His family must be quarrelling, ____?
#65388
A
mustn’t it
B
isn’t it
C
aren’t they
D
needn’t they