单项选择题

A．Husband and wife.
B．Boss and employee.
C．Receptionist and customer.
D．Waiter and guest.
<上一题 目录 下一题>
热门 试题

填空题
Because each class we teach has its own ______, CLT will vary each time we employ it.
填空题
Besides the contribution activity, CLT addresses another area, which constantly challenges teachers, ______.
相关试题