A:Li Lei,         is my brother.         are his books.B:Nice to meet you, Li Lei.
#23474
A
this, These
B
That, this
C
Those, these
D
Those, that
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Come and see me whenever   . 
#2757
A
you are convenient
B
you will be convenient
C
it is convenient to you
D
it is your convenience
—Is this Mr White's office, Mary?—Yes, ________.
#673
A
all right
B
it doesn't matter
C
after you
D
help yourself
------Can I speak to Mr Clare? ------________Here we don’t have such a Madam now.
#4199
A
Hold on.please.
B
Sorry, she isn't here right now.
C
Wrong number, sir.
D
Speaking.
-Can you visit the museum with me this Saturday?   -________. 
#22571
A
Yes, please
B
Sure, I’d love to
C
Yes, I would
D
No, I wouldn’t