He must have gone out. I heard the noise of the door ______when I was still in bed.

题干

A：being locked

B：to lock

C：locking

D：having locked

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A

从b栏中找出与a栏中相对应的答语。

a	b
Can I help you?____	B. The same to you.
When is his birthday?____	C. I don't know.
Happy New Year!____	D. No, I can't.
Do you have a tennis racket?____	E. No, I don't.
Can you play chess?____	F. That sounds great.
Are these your parents?____	G. It's fifteen dollars.
Does Gina like comedies?____	H. History.
How much is the blue sweater?____	I. May, 5th.
What is your favorite subject?____	J. No, they are my uncle and aunt.
Let's play soccer ball.____	A. Yes, please.