Question

--I'm sorry. I ________ at you the other day.

--Forget it. I was a bit out of control myself.

1. A.
   shouldn't shout
2. B.
   shouldn't have shouted
3. C.
   mustn't shout
4. D.
   mustn't have shouted

Answer 1

B
考查情态动词。should have done表示应该做而未做；shouldn't have done表示不应该做而做了：I shouldn't have shouted at you.我不应该向你大嚷(but I did)。其他选项干扰性不强，误选率较低。本题稍易。