I can’t understand ____________ the boy alone.
#37625
A
why did she leave
B
why had she left
C
why she left
D
why she had left
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I’m interested in _________the book is worth reading.
#37523
A
if
B
if or not
C
either of not
D
Whether
— Excuse me, can I interview Mr. Miller this afternoon?— A moment, please. Let me check ______?
#37947
A
if Mr. Miller will be free
B
when will Mr. Miller have time
C
if Mr. Miller had an appointment
D
when does Mr. Miller come back
He told me he was satisfied with______. 
#79208
A
all what I said
B
that I said
C
whatever I had said
D
no matter what I said
I don’t know          .
#37207
A
what the population of Tianjin is
B
what is the population of Tianjin
C
how much the population in Tianjin is
D
how much is the population in Tianjin