Question

It’s difficult to ___ these old books for some of them ______ none of the classification.

A．look for; are belonging to                 B．put up; belong

C．sort out; belong to                      D．pick up; are belonged to

Answer

C

【解析】

试题分析：动词短语用法辨析。Look for 寻找；put up张贴，留宿；sort out分类；pick up捡起；用车接；无意中学会；接受信号；康复。恢复；染上…；belong to属于（没有被动语态，没有进行时）；句意：把这些旧书分类很困难，因为他们不属于任何一种类别。故C正确。

考点：考查动词固定词组辨析