—Mom, where is my schoolbag?   —______. Is it under the bed? 
#20064
A
I don’t know
B
Excuse me
C
You’re welcome
D
Here you are
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—___________?    —He is Andy’s father.
#20262
A
How is he
B
Where is he
C
Who is he
D
What is he
 —Are these your English books?  —Yes, ________. 
#20074
A
they’re
B
they are
C
these are
D
they aren’t
---Excuse me, could I take this seat?---Sorry, __________.
#20127
A
here you are
B
take it
C
it’s taken
D
never mind