We searched the whole area but all to no avail. Robbie ________. A. disappeared B. had disappeared C. was disappearing D. has disappeared本题的 C 和 D 比较好排除。请问是选 A 还是 B?是用一般过去时还是过去完成时?谢谢!
...event them from joining their classmates in higher social classes.答案给的是 behaviour 。可是查字典:[U] 行为;举止;态度 the way that sb behaves, especially towards other peoplegood/bad behaviour 良好 / 恶劣行为social/sexual/criminal behaviour 社...
...tle chat by ourselves."It was only neighbourly to accept.在上面,出现的2处only用法不懂。It's only decent to warn you 和 It was only neighbourly to accept. 中,这2处的only用法含义一样吗? 应该如何理解呢?