单项选择题

The poxvirus vaccine is aimed to________.

A．form immunity to HIV and AIDS virus
B．help the body’’s antibodies
C．help the body’’s cells
D．strengthen the body’’s immunity
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What is NOT a change to the literature class
A．Class location.
B．Class times.
C．Class length.
D．Class size.
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What does the man mean
A．He hopes the party will be successful.
B．He will see the woman around five.
C．He is eager to help the woman.
D．He is unenthusiastic about the party.
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