Some groups still have difficulties access social services. A．gain; in B．gaining
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Some groups still have difficulties ________ access ________ social services.
A．gain; in B．gaining; to
C．to gain; to D．gaining; of
试题答案
B 考查非谓语动词和介词搭配。句意：一些群体仍然很难得到享受社会服务的权利。have difficulty/trouble(in)doing sth.“做某事有困难”和access to sth.“(使用或见到……的)机会/权利”都是固定用法。