—May I ask you some questions, Dr. Wang? —_______A. You’re welcome.B. Sure, go ahead.C. No, I’m busy.
This isn’t my sister’s skirt. ______ is blue.
Now the air in our city is ______ than it used to be. Something must be done to stop it.
This type of MP5 is so expensive that I can’t ______ it.
You can get much ______ about the famous singer on the Internet.
Look at ______ girl with sunglasses. She is my cousin.