单项选择题

A．professor and student.
B．shop assistant and customer.
C．librarian and reader.
D．two friends.
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单项选择题
A．She feels nervous about the test.B．She worries about her competence.C．She thinks she is well prepared.D．She doesn’t like the training behind the wheel.
A．She feels nervous about the test.
B．She worries about her competence.
C．She thinks she is well prepared.
D．She doesn’t like the training behind the wheel.
填空题
environments
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