摘要：31．-Why do you look sad? -There are so many problems . A．remaining to settle B．remained settling C．remaining to be settled D．remained to be settled
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－Why do you look sad?
－There are so many problems ____________.
A．remaining to settle B．remained settling
C．remaining to be settled D．remained to be settled
查看习题详情和答案>>－Why do you look sad?
－There are so many problems ________．
[ ]
A．remaining to settle
B．remained settling
C．remaining to be settled
D．remained to be settled
－Why do you look sad?
－There are so many problems ________．
[ ]
A．remaining to settle
B．remained settling
C．remaining to be settled
D．remained to be settled