单项选择题

We ______ our breakfast when an old man came to the door.

A．just have had
B．just had
C．have just had
D．had just had
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单项选择题
Which of the following is true
A．People’s preference of one color to another is instinct.
B．People’s preference of one color to another is acquired as they grow up.
C．More people happen to love brown because they saw something brown when they were born.
D．Colors have little influence on our moods.
单项选择题
A．Fine, thank you.B．The same to you.C．How do you doD．I’m a teacher.
A．Fine, thank you.
B．The same to you.
C．How do you do
D．I’m a teacher.
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