It was not until the 18th century that man realized that the whole of the brain was involved in the working of the mind， ？
#64932
A
was it
B
wasn’t it
C
did they
D
didn’t they
推荐题目
It's the first time that he has been to Australia，________？
#64492
A
isn't he
B
hasn't he
C
isn't it
D
hasn't it
She must have arrived there yesterday,_____?
#64684
A
mustn’t she
B
needn’t she
C
hasn’t she
D
didn’t she
To have a dinner at a restaurant on the Eve of the Spring Festival, you need to reserve the restaurant months before, _____?
#64850
A
mustn’t you
B
didn’t you
C
don’t you
D
needn’t you
. ---Does your sister have a new watch?----________. Well, she has a new clock.
#60176
A
Yes, she does
B
Yes, she is
C
No, she doesn’t
D
No, she isn’t
---Jack , you shut the window quickly,______? ----Ok!Oh! The window is broken.
#64952
A
do you
B
will you
C
didn’t you
D
don’t you