问题
Sara, I hear your son is sick.— Yes, he has had a high fever. That’s why I want to take two days ______.
A:off
B:back
C:over
D:on;
B:back
C:over
D:on;
正确答案是：
同类题型
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20 "What can I do for you" or"May I help you" is a pet phrase used by _____
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