My parents started off at about 5 o’clock in the morning. They ____ by now.（ ）
- A.would be arriving
- B.should have arrived
- C.would have arrived
- D.should be arriving
正确答案及解析
正确答案
B
解析
考查知识情态动词should与have done连用，表示一个本来应该做而事实上没有做的动作。
My parents started off at about 5 o’clock in the morning. They ____ by now.（ ）
考查知识情态动词should与have done连用，表示一个本来应该做而事实上没有做的动作。
