11.- Are you feeling better today,Mrs.Willis?

11.- Are you feeling better today,Mrs.Willis?
- ____D_____
A.Don't worry about me.B.Just give me some medicine.
C.I'm worried.D.Yes,thanks,doctor.But I still feel dizzy.
12.- Take these pills three times a day.Come back and see me in a week.
- ______A___
A.Thank you very much indeed.B.I can't make it.
C.I haven't decided yet.D.Good idea!
13.- I didn't mean to do that.Please forgive me.
- _____B____
A.Not too bad.B.That's all right.
C.It's a pleasure.D.Thank you.
14.- What do you plan to do after the exam?
- ______C___ How about you?
A.You can say that again!B I'm all for it.
C.Nothing special.D I've changed my mind.
15.- I'm glad you like the show.
- ____A_____
A.Thank you so much for inviting me.B Yes,I'm glad you like it,too.
C.No,not really.D I'll go again next time.
16.- This is heavy!What's in it?
- ____B_____
A.Thanks.I think I can manage by myself.B.My new stereo equipment.I just bought it.
C.I'm glad you're here.D.Are you really interested in it?
17.- I was wondering if you'd like to come over tonight.
-___C_____
A.Yes,last night.B.Yes,over there.
C.Sure,I'd love to.D.Yeah,I liked it too.
18.If a stranger says “Excuse me!” to you in the street,the suitable answer is ____C___
A.Excuse me.B.I'm sorry.
C.Yes?D.OK.
19.- It's been a wonderful evening.Thank you very much.
- _____A____
A.My pleasure.B.It doesn't matter.
C.No,thanks.D.It's Ok.
20.- Is there a room available for tonight?
- Yes,Sir.May I help you?
- ______B___
A.Thank you.B.I'm hoping to book a single room.
C.I want to go for a walk.D.No,that's fine.
21.- Why did Mrs.Green go to the travel agency?
- _____D___
A.By car.B.Yesterday afternoon.
C.In New York.D.For some information about travel.

恭喜楼主,完全正确.
这几道题不是考语法,主要是情景对话.这要靠平时多读,多背,多记.
继续加油!