问题
It looks________you are ill.You should go to see the doctor.[ ]
A:as
B:as though
C:which
D:whether
B:as though
C:which
D:whether
正确答案是：
同类题型
Books are the apple of her eyes. She reads them every day.
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be a slave to work, Ralph! You must take it easy sometimes.—I can’t help it._________.
Some pandas are ________.——You’re right. We must _______ them.