——Mary stays alone in the classroom and looks sad.——________ to her?
#62149
A
What happens
B
What is happened
C
What is happening
D
What was happening
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—Are there any balls under the chair? —________.
#62113
A
Yes, there is
B
Yes, they are
C
Yes, there are
D
No, there are
--Jack's never worked hard at English, _______?-- _______ , so he can't answer the question in English, I think.
#62345
A
is he; Yes, he is
B
is he; No, he isn't
C
has he; Yes, he has
D
has he; No, he hasn't
