--Will you stay for lunch?

--Sorry, _____. My brother is coming to see me.

[　　]

_______we can't get seems better than we have.

[　　]

That was not a good place for skating. You _____ your leg.

[　　]

A．can break

B．could break

C．could have broken

D．could have been broken

--Who _____ it be that is knocking at the door?

--It ____ be Father, but I'm not sure.

[　　]

--A man answered the phone, I suppose it was her husband.

--It ____ her husband. He has been dead for ages.

[　　]

--Is there a flight to London this evening?

--There ____ be. I'll phone the airport and find it out.

[　　]

--_____ you like to go to the concert with me?

--Yes, I'd like to.

[　　]

--She didn't pass the exam yesterday.

--She _____ it well.

[　　]

A．must have prepared

B．should have prepared

C．must have prepared for

D．should have prepared for

--Do you remember ____ he came?

--Yes, I do. He came by car.

[　　]

The ____ look on his face suggested he ____ that.

[　　]

A．surprising; hadn't expected

B．surprising; would expect

C．surprised; hadn't expected

D．surprised; wouldn't have expected