答案绝不会是A.理由如下:
时态不对,整句话是一般过去式,后半句不可用come,即便时态没错come也需用第三人称复数形式.
答案是C.理由如下:
这句话的意思是:议员们刚坐下,总统就来了.可以用以下两种说法:
1 The delegates had just their seats,and then the chariman came.
2 The delegates had just their seats,and then came the chariman.
第一种说法选项中不存在,所以只能用倒装句的形式.动词倒装是为了突出动作.
以上,希望可以帮到你.