问题
Our head teacher says we should have more sleep these days.—I don’t agree with his idea __________ he might be right.
A:if
B:although
C:unless
D:because;
B:although
C:unless
D:because;
正确答案是：
同类题型
Let’s pile up the fallen leaves in the corner and _____ the floor.
There’s_______in today’s newspaper. It’s helpful to our study.
What do you think about the murder case on a cold winter morning—_______________.
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