they were waiting to buy tickets __the last train横线处介词是用 in /to/ with/ on的哪一个 为什么

Mr.Hopkins didn't know___.A.whom they were waiting B.whom they were waiting for并说明 The dogs___________ did not go to look for food.They were waiting for their masterA 、they B、them C、themselves D、themself they were waiting to buy tickets __the last train横线处介词是用 in /to/ with/ on的哪一个 为什么 they were waiting to buy tickets __the last train横线处介词是用 for /to/ with/ of的哪一个 为什么 Did you konw__at the bus stop?选项A.who are they waiting for B.whom they are waiting for C.whom they were waiting for 向英语牛人团求助!请翻译：1.Because people came to drink there while they were waiting for train .2.At two o'clock one morning They were all watching her with fixed eyes,waiting no doubt to find what sort of person she was.怎么翻译?不要直译. the scientists were waiting to see the problem____.(settle) They all went there和 They were all waiting outside the gate第二句中were可以去掉吗?为什么? They were waiting for a train that was very late.帮我吧这个句子翻译, 划线部分提问:They were waiting for -a bas-.a bas 是划线部分 英语填空：They were waiting for a train ___(arrive) there. were for she still waiting her heard they.连词成句, 完形填空Many people were waiting f____(1) the train.Some were r____(2) newspapers,and some were saying good-bye to theur friends.Dr Wang,Mr.Li and Mr.Chen were talking so h___(3)and excitedly that they did not konw the t___(4)was going to leave.T they were born to be RT They were more than glad to help. They were too happy to stop_____(smile) I think they were about to fall,