she thought she?to nanjing at least three times.a:was b:had been _英语解答

she thought she?to nanjing at least three times.
a:was b:had been c:would be ;d:had been

人气：429 ℃　时间：2020-02-04 01:28:44

解答

had been这是个宾语从句,主句一般过去时,从句的动作发生在主句的动作之前,即过去的过去.所以从句要用过去完成时