这些句子是正确的吗?
A: 你昨天是去上海了吗?(Did you go to Shanghai yesterday?)
B: 是啊。(Yes.)
A: (你是)怎么去(上海)的?(How did you get there?)
B: (我是)坐火车(去的)。(I went by train.)
A: (你是)跟谁一起去? (Who did you go with?)
B: (我是)跟林娜一起(去的)。(I went with Lin Na.)
A: 你们是几点到那边的?(What time did you arrive there?)
B: (我们是)十点(到的)。(We arrived at 10 o’clock.)