填空题The teacher should raise his voice in order to make himself (hear) ______.

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2.单项选择题

A.4 dollars.
B.12 dollars.
C.7.5 dollars.
D.8 dollars.

参考答案:will have learnt
参考答案:invitations
参考答案:reasonable
参考答案:not to know
参考答案:get the job