单项选择题

At the international conference, the famous scientist gave an excellent report ______ on his recent experiment.

A．basing
B．based
C．to be based
D．to base
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单项选择题
Which of the following statements is NOT true
A．I live with very good people here.
B．1 live with very strange people here.
C．The family I live with like to drink tea.
D．The family I live with eat butter with salt in it.
单项选择题
According to the passage, which of the following is FALSE
A．John Kennedy’s elder brother was killed in the war.
B．John Kennedy was assassinated by his brother Robert Kennedy.
C．One of Kennedy’s sisters was slow in her mental development.
D．Kennedy family has suffered scandals for generations
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