1. —Is there any time requirement for registration? —_________ ?????????????????????within 30 days after we receive our business license.
A. Sure. We will register within
B. Of course. We might register
C. Certainly.We should register


2. — _________????????????????????? — In most cases, it is the total income received.
A. What does taxable income refer to?
B. Why do you want to know taxable income?
C. When do you start to learn taxable income?


3. — Generally speaking, value added tax is mainly charged on the taxable services. — Well, _________? ? ? ? ? ? ? ? ? ? ?
A. how do you know it？
B. why do you say so?
C. what do you mean by that?


4. _____ our income is, _____tax we should pay.
A. The highest, the most
B. Higher, more
C. The higher, the more


5. You should make sure that your password is long enough to prevent it ______ being easily hacked.
A. in
B. from
C. out


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